Support for WebGL 2 in RenderingModule

[sasha240100]

https://github.com/mrdoob/three.js/issues/9965

We need to add WebGL2Renderer support to RenderingModule.

Concept

RenderingModule will detect webgl 2 support. If webgl 2 is supported then THREE.WebGL2Renderer will be used. If not - it will use THREE.WebGLRenderer as always.

Implementation

• [ ] Test THREE.WebGL2Rendererwork in whs using RenderingModule.
• [ ] Implement a WebGL 2 detector.
• [ ] Use webgl 2 renderer if WebGL2 is supported

WebGL 2 Support

• https://blog.chromium.org/2017/03/faster-3d-rendering-with-webgl-20.html
• https://github.com/WebGLSamples/WebGL2Samples

Version:

• [x] v2.x.x
• [ ] v1.x.x

Issue type:

• [ ] Bug
• [x] Proposal/Enhancement
• [ ] Question

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Tested on:

###### Desktop - [ ] Chrome - [ ] Chrome Canary - [ ] Chrome dev-channel - [ ] Firefox - [ ] Opera - [ ] Microsoft IE - [ ] Microsoft Edge ###### Android - [ ] Chrome - [ ] Firefox - [ ] Opera ###### IOS - [ ] Chrome - [ ] Firefox - [ ] Opera

[thejmazz]

Probably good to also add some examples using webgl 2 features, like

• [ ] transform feedback

http://www.realtimerendering.com/blog/webgl-2-new-features/