Unregister commands onDisable

[efekurbann]

Since TriumphCommands don't automatically unregister commands onDisable, we'll.
This allows users to use PlugMan or ServerUtils, still not recommended tho

[poyrazinan]

• Need to create another class file for this unregister method. Main class cannot usable for this kind of code blocks.
• Also required description to code methods. (params, author and desc.)

[efekurbann]

@poyrazinan, should be all set now. Let me know any more changes are needed.

[poyrazinan]

thank you!