LP#1761222: Replace bib "quality" with item "mint_condition"

LP#1761222: Replace bib "quality" with item "mint_condition"

I originally misunderstood the XUL item field labeled "quality" and
pulled in the bib record "overall quality" score. But upon checking the
XUL holdings maintenance screen again, we clearly want the item's
"mint_condition" field instead. This commit makes that correction and
converts the 't' or 'f' values into "Good" or "Damaged", to match the
item editor labels.

Signed-off-by: Remington Steed <rjs7@calvin.edu>
Signed-off-by: Tiffany Little <tlittle@georgialibraries.org>
Signed-off-by: Chris Sharp <csharp@georgialibraries.org>