Templatized HUD var line
Fix for mouse bug where Y is always off by one
   Added debugging for mouse dx/dy
   Moved angles into control class
   Reduced sensitivity a little (<= 1)
   Used glfwSwapInterval(1) to force vsync
   (300 fps was reducing time for mouse changes)
Cleaning
   Added resources.cpp
      Chunk::render() now takes Resources
      Moved font, textures, shader program into Resources

   Disabled mouse debug

   Moved glUseProgram() to Chunk::render()
   Moved texture unit configuration to Chunk::render()
   Moved OpenGL configuration to initGraphics()
   Moved sticky keys to Controls ctor
   Moved frame setup to Controls::beginFrame()