Bug 5260 - Add option to send an order by e-mail to the acquisition module

Bug 5260 - Add option to send an order by e-mail to the acquisition module

With this patch it will be possible to send order information
to the vendor by e-mail. For now this feature can be triggered
manually with a button before closing the basket.
The order e-mail is based on the acquisition claim feature, but
uses a new notice template.

Test plan:

1) Vendors
A new checkbox "Contact when ordering?" was added to the vendor
page.
- Add a vendor and/or edit an existing vendor
- Verify the new option is saved correctly
- Verify the new option displays on the vendor summary page
  after saving

2) Notices
The feature works with a new notice template: ACQORDER
It works with the same formatting/fields etc. as the acq claim
notice.
- Add a new notice template ACQORDER in module
  'Claim/order aquisition'
- Make sure to use fields from the various offered tables
  in your notice
- Verify it is saved correctly

3) Basket
- Turn on LetterLog system preference
- Create multiple order lines
- Click the 'Send order' button in the toolbar
- Verify error or success message
- Verify you received the e-mail
- Verify there is a new entry with about the sent
  notice in your action_logs table

4) Regression testing...
- Verify order claims still work
- Verify serial claims still work
- Verify new serial issue notices still work
...
(I can provide additional test plans if needed)

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>