Adds syntax highlighting to the NTSL editor

[Absolucy]

About The Pull Request

Syntax definition based off of https://github.com/SuhEugene/NTSL-Syntax

Why It's Good For The Game

Makes code much easier to read!

Changelog

🆑
qol: The NTSL script editor in the traffic control console now has syntax highlighting!
/:cl:

[Yawet330]

using my NTSL code smh smh (thank you for featuring it!)

[Gboster-0]

imo, highlighting at the current moment is not worth sacrificing the ENTER not saving the code.
Since when you press ENTER in the middle of your code to make a new line it'll jump you to the end with this PR.

[Absolucy]

yeah I untm'd it while I try to think of a proper solution

[Absolucy]

would prefer this not re-TM'd til i do some fixups on it