Logarithmic Depth Buffer: improve test for detecting perspective matrix in fragment shader

WebGLRenderer: Make .setFramebuffer() more robust.

Object orientation added to VolumeShader clipping

MD2Character.d.ts: Fix types

BufferAttribute and InterleavedBuffer .setArray() deprecated > removed

WebGLProgram: remove material.combine from WebGLProgram

TS: Clean up WebGLProperties.

BufferAttribute: Deprecate .dynamic, introduce .usage.

WebGLRenderer: Add comment for material.uniformsNeedUpdate check.

Examples: CSS - Prevent overscroll bouncy behavior

Logarithmic Depth Buffer: Include <common> shader chunk in normal material

FileLoader: Fix error response bodies being cached as results

WebGLProgram: Try to use as much parameters as possible

TS: Add `isWebGL2` for WebGLCapabilities.

WebGLPrograms: Cache isWebGL2, logarithmicDepthBuffer, floatVertexTex…

This reverts commit 46e7b4a2.

WebGLPrograms: Cache isWebGL2, logarithmicDepthBuffer, floatVertexTextures, precision, maxVertexUniforms, vertexTextures.

Editor: i18n for menubar.

Until now, the response body was saved to the cache, no matter what the HTTP
status code was.

So a request that returned e.g. HTTP 404 with response body
"No such file" and `onError` being called would, if run a second time,
be found in the cache with "No such file" as the result, and
`onLoad("No such file")` would be called, which is nonsensical.

One common failure was that texture loaders would thus interpret
plain error strings as textures to decode, and failed.

Docs: Improve InstancedMesh page.

Documentation: Added InstancedMesh page.