fix bug where RawShaderMaterial was breaking when using cutomDefines with customExtensions issue #9546 (#9553)

* OES_texture_float implies WEBGL_color_buffer_float

* Optimize Outline rendering of MMD

* Use Layers instead of visible for MMDHelper.renderOutline() optimization

* fixed a bug

if TouchEvent is not defined in the browser,an exception will be thrown,cause else branch statements not to be executed.

* fixed a bug

Check whether 'TouchEvent' is defined in the browser.

* trims extra spaces

* Editor: Fixed texture load issues.

* Don't update twice, but forbid enabling empty maps.

* Added 'wheel' event as mousewheel has been deprecated in chrome.

When using with Mac and OSX trackpad, orbit controls no longer works in chrome, but safari is fine. Traced it to orbit controls not registered the 'wheel' event.

* Add event listener for 'wheel' due to change in Chrome.

WebGLRenderer: Moved numClippingPlanes check. See discussion in c4684612.

Updated radiusSegments to radialSegments.