EH500 Single Header Libraries

Super busy month, again – who knew day-jobs would suck up the time I'd normally be sat in my pants, making stupid jokes to amuse myself – but I have snuck the odd bit of time in to do more EH500 hacking. Mainly because I can’t run Unreal Engine on my laptop, so this is about the only thing I can do when I have the odd hour on the sofa… All of these are external libs, they’re not part of the actual…