test: Avoid looking up again the type of a known binary operator.
Install teken.h for userland.
Part of VT(9) project merge.
Reviewed by:	nwhitehorn
MFC_to_10_after:	re approval

Sponsored by:	The FreeBSD Foundation
Add VT(9) font tools.
Reviewed by:	nwhitehorn
MFC_to_10_after:	re approval

Sponsored by:	The FreeBSD Foundation