Add test-group listeners
Create metric services, test-group listeners, test listeners.
Merge conflicts
Create testInfo and testGroupInfo
Clean code
Clean code
Merge branch 'JFG-423' of https://github.com/kgribov/jagger into JFG-423
Merge pull request #339 from kgribov/JFG-423

Jfg 423 Create test listener, test-group listener, metric service