New port: devel/libaravis: glib/gobject based library for video acquisition using Genicam cameras

Aravis is a glib/gobject based library for video acquisition using
Genicam cameras.

It currently implements the gigabit ethernet and USB3 (Since Aravis
0.5.x) protocols used by industrial cameras. It also provides a
basic ethernet camera simulator and a simple video viewer.

WWW: https://github.com/AravisProject/aravis

PR: 215907
Submitted by: rozhuk.im@gmail.com