new port

Wed Mar 8 23:09:38 UTC 2017

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215907 devel/libaravis: glib/gobject based library for video acquisition using Genicam cameras
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215908 multimedia/aravis: glib/gobject based viewer for video acquisition using Genicam cameras
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210505 graphics/opencv: Update to 3.2

First two done, last in process.

I want to be maintainer.
What I need to do?