copying caching bundle back

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@153734 a5903396-d722-0410-b921-86c7d4935375
renaming caching

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@153735 a5903396-d722-0410-b921-86c7d4935375
new dir

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@153736 a5903396-d722-0410-b921-86c7d4935375
moving the caching source

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@153737 a5903396-d722-0410-b921-86c7d4935375