- Add real tests
- Add platform build support
    - simple defaults for standard platforms and locations
    - Alien::GLFW eventually
- Example code
    - Creating and using GLFWgammaramp structure hashes
    - Creating and using GLFWimage structure hashes
    - Convert GLFW examples to use perl
- Add cbfun returns to set callback routines
    - need XS help to implement without SEGFAULT
