Adding tests for scm:svn mounting

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178854 a5903396-d722-0410-b921-86c7d4935375
Adding license header

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178855 a5903396-d722-0410-b921-86c7d4935375