adding test script for resource level throttling

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180380 a5903396-d722-0410-b921-86c7d4935375
Fix for WSAS-1397

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@180381 a5903396-d722-0410-b921-86c7d4935375