Various SDL input and Game::* cleanups

Various SDL input and Game::* cleanups
---
 CMakeLists.txt             |    5 +-
 Source/Game.cpp            |  357 +++++++++++++++
 Source/Game.h              |  468 ++++++++++----------
 Source/GameDraw.cpp        |  105 +++--
 Source/GameInitDispose.cpp |  197 --------
 Source/GameTick.cpp        | 1088 ++++++++++++--------------------------------
 Source/Globals.cpp         |    3 +-
 Source/Input.cpp           |   68 +++
 Source/Input.h             |   44 ++
 Source/OpenGL_Windows.cpp  |  247 +----------
 Source/Settings.cpp        |   82 ++--
 Source/WinInput.cpp        | 1008 ----------------------------------------
 Source/WinInput.h          |  156 -------
 13 files changed, 1107 insertions(+), 2721 deletions(-)
 create mode 100644 Source/Game.cpp
 create mode 100644 Source/Input.cpp
 create mode 100644 Source/Input.h
 delete mode 100644 Source/WinInput.cpp
 delete mode 100644 Source/WinInput.h