Rename BoardViewTestUtilsTest to BoardViewTest.
Add more scenarios for BoardView selection tests.
Rename BoardViewTest to BoardViewSelectionTest.
Allow tests to obtain the 3D coords of a board lcoation in a board view.
Extract a base class for BoardView tests.
Add tests that validate BoardView reaction to player actions.
Move GetPieceByColorAndPosition() to board_view_test_utils.
Move the utility method inside the single test that uses it.
Init BoardView in base class. Leave children to initialize only the game model.
Remove invalid TODO items.