QtBiomeVisualiser: Added a prototyping int generator flavor.

This generator is easier to manipulate, since it doesn't require rewriting the sizes in the template parameters. On the other hand, it doesn't optimize so well, so it's a bit slower.

Tools/QtBiomeVisualiser/GeneratorSetup.cpp

@@ -15,6 +15,7 @@ static const QString s_GeneratorNames[] =
 	QString("Constant"),
 	QString("DistortedVoronoi"),
 	QString("Grown"),
+	QString("GrownProt"),
 	QString("MultiStepMap"),
 	QString("TwoLevel"),
 	QString("Voronoi"),