GFLib Avatar(CAL3D) Module

The gfAvatar(CAL3D) project has been checked in. This project is the avatar animation module replacing the BDI version we used before.

This new version is built upon the CAL3D package (http://sourceforge.net/projects/cal3d) and requires no 3rd party licenses.

The gfAvatar library requires to have the CAL3D package already installed with the proper paths setup.

A human-based motion model has been added to the core gf.lib which is generic enough to be used stand-alone, or in conjunction with an avatar object.