opengl.glu: add DESTRUCTOR: and CALLBACK: definitions for GLU tessellator
opengl.glu: add DESTRUCTOR: and CALLBACK: definitions for GLU tessellator

mrjbq7/factor,sarvex/factor-lang,bjourne/factor,bjourne/factor,bpollack/factor,nicolas-p/factor,nicolas-p/factor,factor/factor,mrjbq7/factor,bpollack/factor,bjourne/factor,mrjbq7/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,AlexIljin/factor,AlexIljin/factor,factor/factor,dch/factor,AlexIljin/factor,nicolas-p/factor,AlexIljin/factor,AlexIljin/factor,mrjbq7/factor,dch/factor,factor/factor,slavapestov/factor,tgunr/factor,nicolas-p/factor,bpollack/factor,factor/factor,bpollack/factor,slavapestov/factor,slavapestov/factor,tgunr/factor,bjourne/factor,sarvex/factor-lang,dch/factor,bjourne/factor,factor/factor,slavapestov/factor,sarvex/factor-lang,bpollack/factor,AlexIljin/factor,slavapestov/factor,factor/factor,slavapestov/factor,sarvex/factor-lang,sarvex/factor-lang,bjourne/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,sarvex/factor-lang,nicolas-p/factor,tgunr/factor,tgunr/factor,dch/factor,sarvex/factor-lang,dch/factor,slavapestov/factor,bjourne/factor,nicolas-p/factor,dch/factor,mrjbq7/factor,nicolas-p/factor