shared/webgl library

Classes

WebGL
Amalgamation of the WebGL constants from the IDL interfaces in WebGLRenderingContextBase, WebGL2RenderingContextBase, & WebGLDrawBuffers. Because the RenderingContextBase interfaces are hidden they would be replicated in more than one class (e.g., RenderingContext and RenderingContext2) to prevent that duplication these 600+ constants are defined in one abstract class (WebGL).