both dictionaries should be public
add SceneMock
add SubjectMock
add SystemObjectMock
add testGetSceneSubjectsNotNull
add GetObjectSubjectsNotNull
add testAddObjectObserver
add testRemoveObjectObserver
add testAddSceneSubject
add testRemoveSceneSubject
add testAddSceneObserver
add testRemoveSceneObserver
add testGetObjectSubjectIsNotNull
add testAddObjectSubject, refactor TODO
add testRemoveObjectSubject
preparing sceneMock to get results from notified events
add testSceneChangeNotify
add testSceneDestroyNotify
Merge pull request #12 from fraga/stateManagerCodeCoverage

Increasing code coverage