Migrate to Bevy 0.16.0-rc.1 and add no_std support

[Jondolf]

Objective

The first release candidate for Bevy 0.16 has been released! We should migrate our main branch to it.

Bevy 0.16 also adds no_std support. We need to enable some feature flags for this anyway, so I decided to add no_std support on our side in this PR directly since the changes are so trivial,

Solution

Migrate to Bevy 0.16.0-rc.1, and add the std and libm features to support no_std environments.

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Migration Guide

bevy_transform_interpolation now has no_std support.

If you have default features disabled, you must either enable the std feature for the Rust standard library or the libm feature for math in no_std environments.