GLES3 or WebGL backend

[jjcasmar]

I have been doing some experiments to run polyscope in web using emscripten. However, as I was expecting when I started the experiments, it's not possible to run any render on web because polyscope targets OpenGL3.

Are there any plans to provide a GLES3 backend? According to emscripten, GLES3 can be matched to WebGL, and I expect that with a GLES3 backend, it would be possible to run polyscope on web.