Create lumen-gl.ads.addenda

I needed to a) store the modelmatrix;  b) use color picking.  These function were only in the thin raw gl binding.  I am assuming they would be valuable to others.
Delete lumen-gl.ads.addenda
Update lumen-gl.ads

needed access to MVM;
needed to pick object by color;
Merge branch 'fast' into dev

Signed-off-by: darkestkhan <darkestkhan@gmail.com>

Conflicts:
	src/lumen-gl.ads
Complete from fastrgv.

Signed-off-by: darkestkhan <darkestkhan@gmail.com>