Bug 17893 - Move JavaScript to the footer on staff client catalog pages

Bug 17893 - Move JavaScript to the footer on staff client catalog pages

This patch modifies multiple catalog-related pages in order to move
embedded JavaScript to the footer.

The JavaScript previously embedded in cat-toolbar.inc is moved to a
separate file (catalog.js).

To test, apply the patch and test JavaScript-driven interactions on all
modified pages, including JS which isn't page-specific (menus, help,
etc). The functionality of the catalog toolbar should be tested on each
page.

- Bibliographic detail pages (standard, MARC, labeled MARC, ISBD).
- Advanced search page
- Local cover image viewer
- Item search page
- Item detail page
- Search history page
- Checkout history page

https://bugs.koha-community.org/show_bug.cgi?id=17839

Signed-off-by: Lee Jamison <ldjamison@marywood.edu>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>