Изменения для закрепления:
	modified:   java_and_frontend_project_SDVM.iml
	modified:   src/main/java/frontend/CustomWebSocketCreator.java
	modified:   src/main/java/frontend/GameServlet.java
	modified:   src/main/java/frontend/GameWebSocket.java
	modified:   src/main/java/frontend/WebSocketGameServlet.java
	modified:   src/main/java/main/Main.java
	modified:   src/mechanics/base/Field.java
	modified:   src/mechanics/base/GameMechanicsImpl.java
	modified:   src/mechanics/base/GameSession.java
	modified:   src/mechanics/base/GameSessionImpl.java
	modified:   src/mechanics/base/MainMech.java
	deleted:    src/mechanics/base/UserGameImpl.java