Renamed KeyCodeConverter -> Sdl2KeyCodeConverter
Added new constructor WeightedButtonState(ButtonState buttonState)
Renamed KeyCodeConverter -> Sdl2KeyCodeConverter
Fixed a warning
New constuctors KeySymbol(KeyCode keyCode) and KeySymbol(KeyCode keyCode, Keymodifiers keymodifiers). Fixed comparison operators.
New constuctors KeySymbol(KeyCode keyCode) and KeySymbol(KeyCode keyCode, Keymodifiers keymodifiers). Fixed comparison operators.
Added new InputManager interface
Added vector for keeping that of pressed
Implemented InputManager interface. Removed commented crap code. KeyCodeConverter->Sdl2KeyCodeConverter renaming.
Added getters for InputManager interface.
Pressed state name change bool=>ButtonState::PRESSED
KeyCodeConverter => Sdl2KeyCodeConverter