changing the git depsync jgit dependency artifact Id to org.eclipse.jgit.wso2 and version to 2.3.1.wso2v2

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178129 a5903396-d722-0410-b921-86c7d4935375
adding org.wso2.carbon.deployment.synchronizer.git.feature to deployment-synchronizer pom

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/platform/trunk@178130 a5903396-d722-0410-b921-86c7d4935375