Added Scala Exporter

I don't want to mess woth your code, so this is just a class for exporting models to scala objects, without adding it to list or creating new window class.
Object - singleton, you don't need multiple instances of a model(it' easy to switch to class, if you want, replace keyword `object` with keyword `class`).
Not really tested(like adding it to Scala mod and testing in-game), but the syntax is right.