Create project directories

Author: Almar (Almar)

Description
This pretty straightforward script will create quite some number of directories under your Assets folder. This is the default structure I use when creating new projects. It can also serve as an example to create your own "startup script" for defining your own directory structure.

Usage
Create a file "MakeFolders.cs" in the Assets\Editor directory (create it, it does not exist by default) and paste the code below. A new item will appear at the "Assets" menu. This code has not been tested at the Mac version of Unity.