Added .gitignore based on https://raw.github.com/github/gitignore/master/VisualStudio.gitignore

Modified Main.cpp to follow the teapot example: http://openglsamples.sourceforge.net/files/glut_teapot.cpp

Added .obj loader files based on this forum post: http://www.opengl.org/discussion_boards/showthread.php/166573-how-to-load-wavefront-objects