consent page is configurable in the identity.xml

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@174394 a5903396-d722-0410-b921-86c7d4935375
consent page config

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@174395 a5903396-d722-0410-b921-86c7d4935375