Start work on WebGL bindings
- [DH] .gitignore
- [DH] Makefile
- [DH] gles2.imports
- [DH] index.html
- [DH] main.js
- [DH] sysroot/include/GLES2/gl2.h
- [DH] sysroot/include/GLES2/gl2ext.h
- [DH] sysroot/include/GLES2/gl2platform.h
- [DH] sysroot/include/KHR/khrplatform.h
- [DH] test.cpp