Bug 20038: Switch single-column templates to Bootstrap grid: Acquisitions

Bug 20038: Switch single-column templates to Bootstrap grid: Acquisitions

This patch updates several acquisitions module templates to use the
Bootstrap grid.

- acqui/z3950_search.tt - Acquisitions -> Vendor -> View basket -> Add
  to basket -> From an external source. The Z39.50 search form should
  look correct.
  - Search for a title. The search results page should look correct.

- acqui/addorder.tt - Acquisitions -> Vendor -> View basket -> Add to
  basket. Add an order to the basket which costs more than is available
  in the fund you select. The error/confirmation screen should look
  correct.

- acqui\modordernotes.tt - Acquisitions -> Vendor -> View basket -> Add
  internal or vendor note. The note add form should look correct.

- acqui/cancelorder.tt - Acquisitions -> Vendor -> View basket -> Cancel
  order (from an open basket which has existing orders). The
  confirmation screen should look correct.

- acqui\basketheader.tt - Acquisitions -> Vendor -> New basket. The new
  basket edit form should look correct.

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>