adding jira connector base structure

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@181312 a5903396-d722-0410-b921-86c7d4935375
adding jira connector functions

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@181313 a5903396-d722-0410-b921-86c7d4935375