Add Gouraud and Phong Shaders

Signed-off-by: Eduardo Luis Buratti <elb09@c3sl.ufpr.br>
Add blender lesson #2 (texture, uv mapping and animation)

Signed-off-by: Eduardo Luis Buratti <elb09@c3sl.ufpr.br>
Update .gitignore

Signed-off-by: Eduardo Luis Buratti <elb09@c3sl.ufpr.br>