GameMechanic refactroing was initiated.
Merge remote-tracking branch 'origin/GameMechanicRefactoring' into GameMechanicRefactoring

Conflicts:
	src/main/java/gameClasses/Field.java
First test for GameBoard was wroted.
First variant of GameBoard is ready. Tests for GameBoard is ready.
Game was repaired. webSocketService didn't set color and GameMechanics
didn't knew how to invert the board
Refactoring of GameMechanic complite.