remove input device, keyboard and mouse implemented

demos/combustion_demo/src/combustion_demo.cpp

demos/combustion_demo/src/desktop_navigation_behavior.cpp

demos/combustion_demo/src/desktop_navigation_behavior.hpp

demos/viewer/src/viewer.cpp

library/phx/display/display_system_window.cpp

library/phx/display/display_system_window.hpp

library/phx/input/keyboard.cpp

library/phx/input/keyboard.hpp

library/phx/input/mouse.cpp

library/phx/input/mouse.hpp

library/phx/setup.cpp

tests/src/test_keyboard.cpp

tests/src/test_mouse.cpp