Passing taskParameters from ApexConfig to policy logic

Passing taskParameters from ApexConfig to policy logic

TaskParameters can be used to pass parameters from ApexConfig to the policy logic. In the config, these are optional.
Usage as below:

{
  "engineParameters": {
    "taskParameters": [
      {
        "key": "ParameterKey1",
        "value": "ParameterValue1"
      },
      {
        "taskId": "TaskIdVal",
        "key": "ParameterKey2",
        "value": "ParameterValue2"
      }
    ]
  }
}

In the taskLogic, taskParameters can be accessed as below:
	eg:  executor.parameters.get("ParameterKey1"))

If taskId is provided in ApexConfig for an entry, then that
parameter is updated only for that particular task. Otherwise, the task
parameter is added to all tasks.

Change-Id: I9e1b3d3697428309e7d86db40b63ffe822935b69
Issue-ID: POLICY-2364
Signed-off-by: a.sreekumar <ajith.sreekumar@est.tech>