Add Context to AnyCollider

[NiseVoid]

Objective

• Updated version of AnyCollider context #527 with some changes suggested by Jondolf

Solution

• Reapply the changes from the previous PR
• Add a SimpleCollider trait that works for colliders with no context to shorten function signatures

Changelog

• Custom colliders can now specify a SystemParam via AnyCollider::Context
• The context is passed to all AnyCollider methods, allowing data from the World to be fetched
• AnyCollider functions have been suffixed with _with_collider
• A new SimpleCollider trait has been added to retain the simplified methods for colliders that don't need context

Migration Guide

• Custom colliders now need to specify a Context SystemParam, if this is unnecessary () should be used
• When trying to use methods from AnyCollider on an implementation with () context, SimpleCollider should be used instead
• Methods on AnyCollider have been suffixed with _with_context

[Jondolf]

Looks pretty good, mainly a few stylistic nits and documentation suggestions.

Just to be sure, I'll test later today if this has any measurable perf impact in the default case of an empty context, but I assume it should be basically zero-cost.

[Jondolf]

Looks good now! Thanks for the patience on this @NiseVoid and @oxkitsune, I've kept the collider context work sitting here for too long.

I made a couple more small changes just to clean things up, and also ran a quick test to see if this has any measurable perf impact. I didn't notice anything, so it should be good to go :)