LPS-42107 refactor, and create new method addQueryStringToParameterMap for DynamicServletRequest to reuse functionality at PortletLogic and RuntimeTag
LPS-42107 unit test for DynamicServletRequest.addQueryStringToParameterMap(..)
LPS-42107 add filtering functionality to MapUtil, including junit test
LPS-42107 Fix for the embedded porlets
LPS-42107 junit test to PortletParameterUtil to verify and document it's behavior