Bug fixing

- Bug fix SGB frame corruption
- Bug fix STL100-1 and dev-alpha device black screen problem
- Bug fix slow frame rate on some of the GBA games, especially pokemon
- Bug fix GB/GBC game loading problem if first game loading is GBC
- Bug fix GBA state loading/state saving problem if ROM is not first
loading ROM
- Known issue: for dev-alpha device, openGl option must be 1, otherwise
there is corruption