Added browser version

The game can finally run in browser.. sort of.. The game seems to run well in browser, but due to a networking error, multiplayer will always crash the game so it's currently disabled just on the web build. (You can still play online if you download the game and find a player to play against). Hopefully multiplayer on web will be fixed soon! The other issue seems to be that the game doesn't seem to run on mobile in browser. I haven't put too much work into mobile yet so I'm not too concerned, but it's another thing I hope will be working eventually :)

Thanks to everyone who has tested in browser so far!

Edit: Just uploaded the browser version to open directly into a match so you don't need to create an account :)