added multirootedJson scenarios by shahsika

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@195135 a5903396-d722-0410-b921-86c7d4935375
added xmlToJsonConversion scenarios by shashika

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@195136 a5903396-d722-0410-b921-86c7d4935375