LP#1857150: eg-fm-record-editor: add remainOpenOnError option

LP#1857150: eg-fm-record-editor: add remainOpenOnError option

Give eg-fm-record-editor an option controlled by the boolean
remainOpenOnError attribute to, when used as a dialog, keep
the dialog open if an error is encountered upon saving the
record.

Sponsored-by: Evergreen Community Development Initiative
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
Signed-off-by: Ruth Frasur <rfrasur@library.in.gov>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Jason Etheridge <jason@EquinoxInitiative.org>