Add JSON support for Iterate and Aggregate mediators
Add JSON message manipulation methods to EIPUtil, Aggregate Mediator,
SynapseJsonPath
append, remove, replace funtionality for JSON
JSON support with generic Map and List
Add util class to format JSON with Jackson
Add jackson dependancy
Add JSON support for Enrich mediator
Add JSON support methods
Add Jsonpath dependancies
JSON support for Iterate Mediator
JSON support for Aggregate mediator
Add JSON support methods