sentToPcBrick, preparing preStageActivity
worked on PcConnectionManager and Connection
started implementing custom keyboard
further work on customKeyboard
implemented last functionalities for sending a key (in PreStageActivity and SendToPcBrick
Version check: prestage checks if actual server- and client version are compatible
SendToPcActionTest, SendToPcBrickTest, SendToPcBroadcastTest, SendToPcConnectionTest, SimulatedDatagramSocket, SimulatedSocket added
now SendToPcBrickTest should match all display sizes
fixed bugs
implemented SimulatedPcConnectionManager to mock Singleton and test all functionalities at once