Add scaling factor for webvr renderers

Docs: Automatically set language from hash.

GLTFLoader: Implement KHR_texture_transform extension.

SVG Loader: Accept multiple transforms in a single node

WebGLBackground: clarify background's render order

Allow for the ascii header to end with CRLF

Support real-time changes to gammaFactor

WebXR: Updated tokens

Previously we assumed that the header of a ply file had to end with

    end_header\n

but it is there are systems that write the end as

    end_header\r\n

This previously left the rest of the file read off by one byte.

Fixes issue 14937

[Examples] Prevent content overflow in some demos

Dynamic Cubemap example: center background mesh on camera position

CubeCamera: add options arg to constructor

NodeMaterial - Triplanar Mapping example

correct method names setMin(),setMax() in Lut.html

AnimationLoader: Added to build

Cleanup:remove commented code