move source from (4.2.0)branch version directory

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@191918 a5903396-d722-0410-b921-86c7d4935375
remove user.core source from user.api component

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@191919 a5903396-d722-0410-b921-86c7d4935375
adding initial user core for c5 from 4.2.0 kernel patch001

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@191920 a5903396-d722-0410-b921-86c7d4935375