Added some UI unit tests.
Added unit tests for UiEngine components.
Show hint positions...includes placeholder example until merged with grid.
Merge branch 'develop' of https://github.com/kubasub/chinese-checkers into feature/HintDrawing

Modified CcGameBoard a little bit to accept the constructors we will need.
Added private
Changed some example code back to normal.
Merge branch 'feature/HintDrawing' into develop