Updated the main executable to help address some application startup issues:

• Added logging to application window creation process
• Updated logging writing to be unbuffered (previously the contents logfile would not flush to disk in the event of a crash or other exceptional condition)
• Increased the maximum number of display modes supported by the graphics library
  • This fixes an application startup issue for people with multi-monitor displays because each display would provide its own set of display modes (causing the maximum to be reached)

Props to musikaffe57 for his triple-monitor testing.