Interim
Interim
Merge branch 'solarsystem-sdl2' of https://github.com/hewsmike/Einstein-At-Home-Screensaver into solarsystem-sdl2
Get ogl_utility search paths right
No need for release() to return a bool ie. assume release always succeeds.
Get ogl_utility search paths right
Buffer class builds OK ( pro-tem )
Shader class builds OK ( pro-tem )