RPC Support!

I know Discord RPC has been a feature that has been highly requested and im proud to say thanks to the help from https://github.com/JarekToro I have been able to achieve this with flying colors!

Changelog:

• Discord RPC support is now finished and included!
• Fixed a bunch of performance bugs
• Cleaned up GPU usage
• Fixed RAM usage now 300MB while audio is playing!
• CPU Usage has been depleted down to 1-5% while audio is playing!