pooltool.physics.evolve

Evolve ball motion.

FIXME My vision for this package is to be somewhat like pooltool/physics/resolve/ but specifically for the evolution of rolling, sliding, and spinning ball motion states, i.e. the equations of motion presented in

https://ekiefl.github.io/2020/04/24/pooltool-theory/#3-ball-with-arbitrary-spin

The code should be configurable and passed to PhysicsEngine in physics/engine.py, just like the Resolver class in physics/resolve/resolver.py