Bug 35457: Move SerialsDefaultEMailAddress and SerialsDefaultReplyTo to serials prefe...

Bug 35457: Move SerialsDefaultEMailAddress and SerialsDefaultReplyTo to serials preferences

This patch moved the SerialsDefaultEMailAddress system preference and
the SerialsDefaultReplyTo system preference to the Serials preferences.

To test:
1. Apply patch
2. Go to Administration > System preferences > Acquisitions
   --> SerialsDefaultEMailAddress and SerialsDefaultReplyTo should not
   be there
3. Go to Administration > System preferences > Serials
   --> There should be a new section called "Notifications" with
   the two system preferences

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Emily Lamancusa <emily.lamancusa@montgomerycountymd.gov>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit e5d1fb041dd6012eb76a2a2fefb98a2f28f425ee)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>