adding the scim user schema extension configs

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178055 a5903396-d722-0410-b921-86c7d4935375
scim schema extension config added to the distribution

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178056 a5903396-d722-0410-b921-86c7d4935375