* feat: switch to the new Bvh from parry for the broad-phase
* chore: cargo fmt + update testbed
* chore: remove the multi-grid SAP broad-phase
* fix soft-ccd handling in broad-phase
* Fix contact cleanup in broad-phase after collider removal
* chore: clippy fixes
* fix CCD regression
* chore: update changelog
* fix build with the parallel feature enabled
* chore: remove the now useless broad-phase proxy index from colliders
* fix tests
- Fix the wrong codepath taken by the solver for contacts involving a collider without parent.
- Properly adress the non-linear treatment of the friction direction
- Simplify the sleeping strategy
- Add an impulse resolution multiplier