feature: implement custom command parser

[MeikelLP]

What feature would you like to request?

CommandLineParser is very limited and overkill for the ingame commands. It served its purpose but some critical features are missing:

• Validation

Also the setup to call it dynamically is very tricky. Not very scalable.

Why do you need this feature?

No response

Feature Priority

Medium

Original Metin2 Behavior

No

Feature Screenshot / GIF

No response