Ziggurat plugin added

This will create stacked platforms, like a ziggurat. You can specify the how many sides you want, and how much of a slope. Useful for things like an aztec temple, or even just a raised platform of steps.

You can get it in the update here:

www.aztica.com/Images/plug-ins.zip

Here's an quick example of using the ziggurat plugin, along with the stairs plugin. (This took just a couple of minutes to make, so don't judge it on artistic value):