Resample and optimize imported animation curves (similar to Unity's built-in FBX importer)

[kodra-dev]

Is your feature request related to a problem? Please describe.
Unity's built-in FBX has options to resample imported animation curves, which reduces the amount of keyframes by a lot.

The sample animation as .fbx:

And as .glb:

See the huge difference in the number of keyframes.

Describe the solution you'd like
Something similar to Unity's FBX importer settings:

Describe alternatives you've considered
Uh... using FBX instead...?

[atteneder]

Thanks for the suggestion.

Although I see the value in this feature request, I don't think glTFast should put effort into fixing corrupt or sub-optimal input data (at least before other more essential features are implemented first).

The FBX feature cannot be easily re-used, as it stems from the FBX SDK itself.

I suggest to use other third party tooling to optimize the animation clips.