x11-toolkits/wxgtk32: GUI toolkit (wxWidgets) with GTK+ bindings

3.2 is new stable branch after 3.0, 3.1 was develop/unstable branch,
so in future 3.2 have to replace 3.1 for all consumers in ports.

PR: 265093
Reported by: VVD <vvd@unislabs.com>
Reviewed by: rhurlin