Moving to github discussions

I’ve put the phpBB forums into read only mode; for future discussions and questions, please use the repository discussion tabs!

v1: https://github.com/bepu/bepuphysics1/discussions
v2: https://github.com/bepu/bepuphysics2/discussions

Also, since I haven’t announced it here yet- note that nuget prerelease packages are now released automatically. If you are still using 2.2.0, consider updating to the newer 2.3.0 betas (or whatever is out when you read this)!