Raylib-J v0.4

In a (post) Christmas Day miracle I was able to get the big bugs squashed so I could push this out.

What's new?

• Physac-J is included in Raylib-J under the physac package
• Raylib-J has support for Raylib 4.0 features!
• Miscellaneous repo improvements

This may not be the biggest update I've pushed, but it's another step forward. Stay tuned for what awaits in 2022.

Happy Christmas, Merry New Year, or anything else you choose to celebrate these winter months!