Add RPCS3

NOTE: Each discrete (stand-alone) request should be in its own issue.

Put "Add ____" as Title
[ ] Done

Provide a link to the proposed addition.
Place link here.
https://rpcs3.net/

Explain why it should be added
A clear and concise description of why it should be added to this list.
It is an awesome Native PS3 emulator that supports many games.

This is from RPCS3 -
"Users can expect to run RPCS3 on the latest performance Macs with support for M1 and Intel Macs with dedicated graphics on macOS 11.6 or later."

Additional context
Add any other context or screenshots about the feature request here.
https://youtu.be/gIcsUr7W00k

Issue Checklist

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• [ x] I have checked for other similar issues
• [ x] I have explained why this change is important
• [ x] I have added necessary documentation (if appropriate)