Builds: Introduce three.tsl.js

[sunag]

Related issue: #29644 (comment)

Description

• Introduce three/tsl build to import maps. The new file is three.tsl.js. ( TSL )
• Introduce three/webgl to import maps. ( Core + WebGPURenderer + Nodes )
• Update all examples and depedencies.

Example

import { RenderTarget, Texture, Vector2, QuadMesh, NodeMaterial, TempNode } from 'three/webgpu';

import { If, Loop, int, Break, sqrt, sign, mix } from 'three/tsl';

@mrdoob I think both unnoticed already have a TSL.js file in the lib, what do you think if we follow the second option Three.TSL.js for the build?

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	339.13 79	339.13 79	+0 B +0 B
WebGPU	483.69 134.01	481.83 133.9	-1.86 kB -111 B
WebGPU Nodes	483.16 133.9	481.3 133.8	-1.86 kB -105 B

🌳 Bundle size after tree-shaking

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

	Before	After	Diff
WebGL	464.59 111.96	464.59 111.96	+0 B +0 B
WebGPU	550.99 149.23	550.99 149.23	+0 B +0 B
WebGPU Nodes	506.87 138.94	506.87 138.94	+0 B +0 B