Changes

• Improve cheat error handling
• Improve cheat dialog slightly (ok button is now disabled by default)
• Improve RMG-Audio by using mupen64plus-audio-sdl as base
• Add iQue cheats from Gent
• Add CRLF support in cheat files
• Add 'Remove Duplicate Keybindings' in settings dialog
• Change maximum ROM browser cache items to 10000
• Change default ROM browser limit to 250
• Fix cheat settings being gone after opening the settings dialog in-game