glTF KTX2.0 Texture support

[lashahub]

Description

Currently useGLTF only supports Draco compressed glTF models. It would be very nice to also support KTX2.0 textures, as in three.js we have both: .setDRACOLoader and .setKTX2Loader.

Suggested solution

Add ktx2 and transcoderPath options in useGLTF and GLTFModel.

Alternative

No response

Additional context

No response

Validations

• I agree to follow this project's Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.