Main menu and credits

So the 0.1-14 release marks the addition of long awaited main menu and credits screen :) There’s some problem with MacOS build, I’m on it right now.

There’s also some little glitches with menu button sounds, but to fix those I’d have to delve into low-level engine internals, more on that on Saturday stream :)

P.S. Yay fixed MacOS build in 0.1-16. Hope it works - I don’t have a mac to test it. Feel free to download and check it out!