Refactoring brevis.core
Version bump and some more adjustments
Stashing some adjustments
Rendering is wonky, but most of the parts should be there.
Still fixing rendering and input. Simulations now run in an independent
thread.
Textures appear, do they work fully? We will see...
Input still isn't quite up to snuff.
Bye bye cantor. Without you we would have been naught but a dust.
Silencing some texture output, and adding checkers
Aside from shadows, most things are happy enough for swarm/boids.
Minor version bump. Beginning of joints.
Some more changes are needed, but it is time to go back to master.
Merging prerelease into master (and adding a missing file)