dvars in call

    TODO:
    - not clear if dvar in calleed should be overriden as well??
    - need a review on this later on
    scopes:
    - name: global
      vars:
        student:
          name: Tom
          gender: Male
          address:
            suburb:
              name: sydney
              postcode: 2000
              CBD: yes
            school: Sydney Grammar
    - name: nonprod
      members:
      - dev
      - staging
      vars:
        a: non-prod-a
        b: non-prod-b
        c: non-prod-c
        d: non-prod-d
      dvars:
      - name: school
        value: |
          address:
            suburb:
              name: {{.student.address.suburb.name}}
              postcode: 2000
              CBD: yes
            school: {{.student.address.school}}
        flags: [toObj]
    - name: dev
    tasks:
    - name: task
      task:
      - func: call
        vars:
          a: local-a
          b: local-b
        dvars:
        - name: school
          value: |
            address:
              state: NSW
              city: sydney
              suburb:
                name: {{.student.address.suburb.name}}
                postcode: 2000
                CBD: LOCAL
              school: {{.student.address.school}}
            principal: Mr Right
          flags: [toObj]
        do:
        - show_school_details
    - name: show_school_details
      task:
      - func: shell
        vars:
          a: show-school-details-a
          b: show-school-details-b
        dvars:
        - name: class_room
          value: 3K
        - name: school
          value: |
            address:
              suburb:
                name: {{.student.address.suburb.name}}
                postcode: 2000
                CBD: no
              school: {{.student.address.school}}
            principal: Mr Peter
            something: ref task does not have this field
          flags: [toObj]
        do:
        - echo """1.school -> {{.school}}"""
        - echo """2.school object CBD -> {{.school_object.address.suburb.CBD}}"""
        - echo """3.school object-> {{.school_object.address.school}}"""
        - echo """4.school object-> {{.school_object.principal}}"""
        - echo """5.a {{.a}}"""
        - echo """6.b {{.b}}"""
        - echo """7.school object-> {{.school_object|printObj}}"""
    

    loading [Config]:  ./tests/functests/upconfig.yml
    Main config:
                 Version -> 1.0.0
                  RefDir -> ./tests/functests
                 WorkDir -> cwd
              AbsWorkDir -> /up_project/up
                TaskFile -> c0034
                 Verbose -> vvv
              ModuleName -> self
               ShellType -> /bin/sh
           MaxCallLayers -> 8
                 Timeout -> 3600000
     MaxModuelCallLayers -> 256
               EntryTask -> task
      ModRepoUsernameRef -> 
      ModRepoPasswordRef -> 
    work dir: /up_project/up
    -exec task: task
    loading [Task]:  ./tests/functests/c0034
    module: [self], instance id: [dev], exec profile: []
    profile -  envVars:
    
    (*core.Cache)({
    })
    
    Task1: [task ==> task:  ]
    -Step1:
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0,
      "a": "local-a",
      "b": "local-b",
      "c": "non-prod-c",
      "d": "non-prod-d",
      "school": "address:\n  state: NSW\n  city: sydney\n  suburb:\n    name: sydney\n    postcode: 2000\n    CBD: LOCAL\n  school: Sydney Grammar\nprincipal: Mr Right\n",
      "school_object": {
        "address": {
          "school": "Sydney Grammar",
          "state": "NSW",
          "city": "sydney",
          "suburb": {
            "CBD": "LOCAL",
            "name": "sydney",
            "postcode": 2000
          }
        },
        "principal": "Mr Right"
      },
      "student": {
        "name": "Tom",
        "gender": "Male",
        "address": {
          "school": "Sydney Grammar",
          "suburb": {
            "CBD": true,
            "name": "sydney",
            "postcode": 2000
          }
        }
      }
    })
    
    =Task2: [task ==> show_school_details:  ]
    --Step1:
    self: final context exec vars:
    
    (*core.Cache)({
      "d": "non-prod-d",
      "school_object": {
        "address": {
          "school": "Sydney Grammar",
          "state": "NSW",
          "city": "sydney",
          "suburb": {
            "CBD": false,
            "name": "sydney",
            "postcode": 2000
          }
        },
        "principal": "Mr Peter",
        "something": "ref task does not have this field"
      },
      "school": "address:\n  suburb:\n    name: sydney\n    postcode: 2000\n    CBD: no\n  school: Sydney Grammar\nprincipal: Mr Peter\nsomething: ref task does not have this field\n",
      "student": {
        "name": "Tom",
        "gender": "Male",
        "address": {
          "school": "Sydney Grammar",
          "suburb": {
            "postcode": 2000,
            "CBD": true,
            "name": "sydney"
          }
        }
      },
      "class_room": "3K",
      "b": "local-b",
      "up_runtime_task_layer_number": 1,
      "c": "non-prod-c",
      "a": "local-a"
    })
    
    cmd( 1):
    echo """1.school -> {{.school}}"""
    
    -
    1.school -> address:
      suburb:
        name: sydney
        postcode: 2000
        CBD: no
      school: Sydney Grammar
    principal: Mr Peter
    something: ref task does not have this field
    
    
    -
     .. ok
    cmd( 2):
    echo """2.school object CBD -> {{.school_object.address.suburb.CBD}}"""
    
    -
    2.school object CBD -> false
    
    -
     .. ok
    cmd( 3):
    echo """3.school object-> {{.school_object.address.school}}"""
    
    -
    3.school object-> Sydney Grammar
    
    -
     .. ok
    cmd( 4):
    echo """4.school object-> {{.school_object.principal}}"""
    
    -
    4.school object-> Mr Peter
    
    -
     .. ok
    cmd( 5):
    echo """5.a {{.a}}"""
    
    -
    5.a local-a
    
    -
     .. ok
    cmd( 6):
    echo """6.b {{.b}}"""
    
    -
    6.b local-b
    
    -
     .. ok
    cmd( 7):
    echo """7.school object-> {{.school_object|printObj}}"""
    
    {
      "something": "ref task does not have this field",
      "address": {
        "suburb": {
          "CBD": false,
          "name": "sydney",
          "postcode": 2000
        },
        "school": "Sydney Grammar",
        "state": "NSW",
        "city": "sydney"
      },
      "principal": "Mr Peter"
    }
    
    {
      "something": "ref task does not have this field",
      "address": {
        "state": "NSW",
        "city": "sydney",
        "suburb": {
          "name": "sydney",
          "postcode": 2000,
          "CBD": false
        },
        "school": "Sydney Grammar"
      },
      "principal": "Mr Peter"
    }
    
    -
    7.school object-> {
      something: ref task does not have this field,
      address: {
        state: NSW,
        city: sydney,
        suburb: {
          CBD: false,
          name: sydney,
          postcode: 2000
        },
        school: Sydney Grammar
      },
      principal: Mr Peter
    }
    
    
    
    -
     .. ok
    . ok