Quite a bit going on in here.
- Messing with shaders
- Move ShaderProgram to std::unique_ptr
These are part of efforts to clean up the ShaderProgram class to have a
better interface.
- Working on shell-ing out commands.
This is pointless but getting me in the state of thinking about the
system as a whole - e.g. "stop" at the "prompt" should "stop the
server," so the prompt thread will need to communicate with the main
thread. We already have event signalling in place for this.
- Triangle strip cube
Performance testing reasons. Not being used for now.
- Remove TCP stuff from UDPbase. It only does UDP now.
