List Dependencies

[JohnAlexINL]

Could you update this project to include its dependencies?
Every time I try to build it, it tells me I'm missing something,
I have to look up what the name of the package that includes that header is,
which often times isn't even helpful, install something,
and then get a totally new dependency error.
I don't know what cannot find -lXxf86vm is even supposed to mean,
and nowhere in the repo does it say that this depends on
a tonne of packages including xorg-dev, libx11-dev, libgl1-mesa-dev, and libxcursor-dev.
What do I actually need to install and build this project?

[ajzaff]

External dependencies are only OpenGL and GLFW. We could probably add those to Getting Started. If you know the precise steps why not make a small PR.