Merge branch 'Pipe-and-Filter' into 'dev'

CheckersClient/android/assets/Menu/1x/LobbyMenu@1x.png

...kersClient/core/src/com/mygdx/game/UniCheckersClient.java

...Client/core/src/com/mygdx/game/views/GameViewManager.java

...kersClient/core/src/com/mygdx/game/views/LoadingView.java

...e/src/com/mygdx/game/views/LobbyPlayTransitionScreen.java

CheckersClient/core/src/com/mygdx/game/views/LobbyView.java

CheckersClient/core/src/com/mygdx/game/views/MenuView.java

CheckersClient/core/src/com/mygdx/game/views/PauseView.java

CheckersClient/core/src/com/mygdx/game/views/PlayView.java

CheckersClient/core/src/com/mygdx/game/views/View.java

...ient/core/src/com/mygdx/game/views/enums/LobbyAssets.java

CheckersServer/core/src/com/mygdx/game/model/Lobby.java