Detect and include inner classes

[FunnyMan3595]

Java supports inner classes, classes contained in other classes. For example:

OuterClass.java

public class OuterClass {
    public class InnerClass {
    }
}

Compiling this produces two .class files, OuterClass.class and OuterClass$InnerClass.class . Right now, mcp_rebuild will only package OuterClass.class, as it fails to detect the inner class for inclusion.

This is not really a priority. As far as I'm aware, all uses of inner classes can be eliminated by promoting the inner class to a regular class. Still, it would be a nice enhancement to have.