add rest.api module

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@177747 a5903396-d722-0410-b921-86c7d4935375
enable Axis2ModuleTestCase class

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@177748 a5903396-d722-0410-b921-86c7d4935375