This module contains plugins for image formats that aren't part of
the "core" (qtbase) offering, starting with mng.

Task-number: QTBUG-21869
Change-Id: I85e51ed6f84c07419b1676f9def234c36f10141f
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: aavit <qt_aavit@ovi.com>