stylua: init module

Stylua is deterministic formatter for Lua 5.1, 5.2, 5.3, 5.4, LuaJIT, Luau and CfxLua/FiveM Lua, built using full-moon. StyLua is inspired by the likes of prettier, it parses your Lua codebase, and prints it back out from scratch, enforcing a consistent code style.