NodeBuilders: Unifies uniform groups of different shader stages

[sunag]

Related issue: #32243

Description

The goal is to unify the uniform groups from different shader stages into a single one shared, thus avoiding updating some buffers in two different places. The main focus of the unification is to facilitate the sharing of groups between similar objects, since this would be more complicated if they were separated between vertex binding groups and fragment shaders.

This is still part of the update that is being done in #32243

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	355.12 84.44	355.12 84.44	+0 B +0 B
WebGPU	616.5 171.1	616.87 171.21	+364 B +101 B
WebGPU Nodes	615.11 170.84	615.47 170.95	+364 B +106 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	487.45 119.37	487.45 119.37	+0 B +0 B
WebGPU	687.41 186.69	687.78 186.8	+364 B +103 B
WebGPU Nodes	637.26 173.91	637.62 174.01	+364 B +98 B

[sunag]

This will make the buffers larger, making partial buffer updates more important, which can be done until the end of the release.