Updated OpenGL ES Xcode Project Template

Here is a new version of my OpenGL ES project template for Xcode. This version adds a class called "OpenGLCommon.h", which contains data structures and inline functions for vertices, vectors, triangles, etc. - mostly stuff from the Wavefront OBJ class that has generic applicability, backported into the template.

As before, to use this, unzip the archive and then drag the resulting folder to the following location (you may need administrator privileges to do this):

/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Project Templates/Application/