dynamic routing

    tasks:
    - name: task
      task:
      - func: call
        vars:
          person:
            name: tom
            age: 23
        do:
        - '{{.person.name}}_action'
    - name: tom_action
      task:
      - func: cmd
        do:
        - name: print
          cmd: 'hello {{.person.name}}'
    

    loading [Config]:  ./tests/functests/upconfig.yml
    Main config:
                 Version -> 1.0.0
                  RefDir -> ./tests/functests
                 WorkDir -> cwd
              AbsWorkDir -> /up_project/up
                TaskFile -> c0092
                 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/c0092
    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,
      "person": {
        "name": "tom",
        "age": 23
      }
    })
    
    =Task2: [task ==> tom_action:  ]
    --Step1:
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 1,
      "person": {
        "name": "tom",
        "age": 23
      }
    })
    
    ~~SubStep1: [print:  ]
    hello tom