Removing identity.provider.mgt.stub and adding idp.mgt.stub

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@179184 a5903396-d722-0410-b921-86c7d4935375
Removing identity.provider.mgt and identity.provider.mgt.ui

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@179185 a5903396-d722-0410-b921-86c7d4935375
Adding idp-mgt component

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@179186 a5903396-d722-0410-b921-86c7d4935375