[Suggestion] Add compatibility with 3d models

[Wxlter-Mewe]

Hello!

Several of us know that there are other plugins that spend a lot of resources literally, they take up a lot of resources, so we have decided to use FancyNPCS for its ease of use and the light resources it spends.

I have seen several people still using those heavy plugins just for the 3d modes.

I suggest that you implement model compatibility with the plugins; ItemsAdder, Model Engine 3 and Model Engine 4, Custom Model Data.