Update x11-wm/hs-xmonad and x11-wm/hs-xmonad-contirb to 0.13

• Update xmonad to 0.13
• New required ports devel/hs-directory
• Required update of x11/hs-X11 to 0.13

PR: 217012
Reviewed by: mat
Approved by: maintainer timeout (2 weeks), rakcuo (mentor)
Differential Revision: https://reviews.freebsd.org/D9548