Use meshloader to support multiple file formats loading

[Vrixyz]

• Same objective as Use mesh loader to support more format #732 ; but mesh-loader is added to a more generic crate.
• See CHANGELOG.md for a list of changes

rapier/crates/rapier3d-meshloader/CHANGELOG.md

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	## Unreleased
	Renamed the crate from `rapier3d-stl` to `rapier3d-meshloader`, to better reflect its support for multiple formats.
	### Added
	- Add optional support for Collada and Wavefront files through new feature flags `collada` and `wavefront`.
	### Modified
	- Support for STL is now optional through feature `stl`.
	- Features `stl`, `wavefront` and `collada` are enabled by default.

[sebcrozet]

Does this work?

Suggested change

	.map(|xyz| Point::new(xyz[0], xyz[1], xyz[2]))
	.map(Point::from)

[Vrixyz]

Your suggestion doesn´t work with the following error:

error[E0277]: the trait bound OPoint<_, Const<3>>: From<&[f32; 3]> is not satisfied

I can fix it with cloned(), or could make an upstream pr to support that conversion?