Bug 7469: put focus on 1st field of creation form instead of search box (Acquisition)

Bug 7469: put focus on 1st field of creation form instead of search box (Acquisition)

When a user creates a new vendor, a new borrower or a new basket
(maybe on others page too, to be listed), a creation form is displayed,
but the focus is still on the search textbox on page top.

It would be probably better to switch the focus to the first field of
the creation form.

This patch adds the focus, for acquisitions module, on first input for
pages with a data creation or modification or pages with only one form
(like Z3950 search).

Test plan :
Go to pages and look where is the focus :
- acqui/basketgroup.pl : focus on "Basket group name:"
- acqui/basketheader.pl : focus on "Basket name:"
- acqui/invoices.tt : focus on "Invoice no:"
- acqui/modordernotes.pl : focus on "Notes:"
- acqui/neworderempty.pl : focus on "Title:"
- acqui/supplier.pl : focus on "Name:"
- acqui/z3950_search.pl : focus on "Title:"

Signed-off-by: Melia Meggs <melia@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
The focus choice is relevant and works as described.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>