WebGL sphere

A WebGL textured sphere. demo at https://khef.co/demos/earthwebgl/.

• npm install to install dev dependencies

• npm run start builds, launches in local browser, and watches for changes in client files

• npm watch-src in a second terminal will watch and re-compile typescript files as needed

Forked from http://codepen.io/aholmes/pen/MyGKZd and textures added