LP1301567: New format icons

This set adds icons for the new formats that can now be represented due to
the recent MVF work. Many thanks to Jim Keenan at C/W MARS for creating
many of these icons.

The serial.png icon was borrowed from the Koha project and was originally
contributed by VOKAL (Vermont Organization of Koha Automated Libraries).

Signed-off-by: Kathy Lussier <klussier@masslnc.org>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>