com.unity.cloud.gltfast 6.3.0 Package Notes

Refactored test scripts folder layout.
(Export) Normal maps are exported in PNG format by default.
(Export) HDRP area lights are still exported as spot-lights, but their intensity is taken from `Light.intensity` (still incorrect, but more consistent).
Switched from asset-path-based to GUID-based shader loading (in the Editor 2021 and newer) in order to allow for a flexible folder layout without risking breaks/regressions should the layout change in the future.
Avoid expensive UnityEngine.Object null check when accessing cached default shaders.

Exception when required glTF shader is not included.
Compiler errors when safe mode (`GLTFAST_SAFE` scripting define) is enabled.
Compiler error with High Definition Render Pipeline version 17 (2023.3)
Removed usage of obsolete APIs in High Definition Render Pipeline version 17 (2023.3)
(Export) Area light's range value is exported accurately (as shown in the inspector).
Various occasions of `NullReferenceException` when no logger is used/provided.
Proper error handling when trying to load unsupported sparse texture coordinates.
Ensure that special chars in string values don't lead to invalid JSON.
Using invariant culture `ToLower`/`ToUpper` variants on all non-language-specific data.
Added missing `GetHashCode` implementation (removes compiler warning).
Compiler errors and warnings on newer HDRP versions (16.x/17.x)
URP clearcoat shader loading at runtime.
HDRP stack-lit shader loading at runtime.

com.unity.cloud.gltfast 6.3.0