HRE v0.1 "Aachen"

Given that my engine shares acronyms with the Holy Roman Empire, ( and that I'm also kind of a huge EU4 nerd) , I thought it only fitting to name this release and future releases after one of the Free Imperial Cities of the HRE. We'll begin with the original favorite residence of Charlemagne, Aachen. You can read more about the city here.

This release includes all of the features outlined in the current readme and comes with assets that you can use to test my renderer. It's early days, so if you encounter any issues please make sure to report them in the issue page and I'll get to it soon.