PolyTech Framework v0.9.3 - Minor feature update

Added authors to PolyTechMod by setting this in a mod ptf will add your mod and the authors to the end of the pb2 credits.
Example:

// ...
public Awake(){
    // ...
    this.authors = new string[] {"user1", "user2"};
    registerMod(this);
}
// ...