New port: x11-themes/xfce-evolution: Complete Xfce Evolution Gtk2, Gtk3, Qt4, Qt5, wxWidgets, Xfce themes

PR: 223825
Submitted by: J.R. Oldroyd <fbsd@opal.com>
Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D13219