x11/xman: Update to 1.1.5

Update x11/xman to 1.1.5
Adjust dependencies, remove unneeded depedencies and add dependency on
libX11
Add LICENSE_FILE
This is maintenance release

Changelog:
https://lists.x.org/archives/xorg-announce/2019-July/003011.html

Obtained from: FreeBSD Graphics Team development repo

		https://github.com/FreeBSDDesktop/freebsd-ports/tree/feature/xorglibs