Requires multitheftauto/mtasa-blue#2815

To use it with VSCode.

1. Install Luau Language Server extension
2. Place mta.d.lua into your project's root directory.
3. Open Luau Language Server's settings. Add a new item into Definition Files: mta.d.lua
4. Disable another Lua extensions
5. Restart VSCode

It's not finished yet, but feel free to contribute