Add blang support
blang is an interpreted programming language that I made myself. No fork, nothing. Just myself. The GitHub page is at Ganesha2282882/blang. You will also see documentation when you scroll down to "Help". I also made a convenience repl which the Replit developers can use for it. It's called "runBlang", which is linked below. Just be sure to hide startblang.sh and .replit. Don't worry, you can fork and modify the convenience repl, Replit developers! And no, I don't need $10k.