Bug 29162: Change template structure on OPAC library page so that a single library...

Bug 29162: Change template structure on OPAC library page so that a single library can easily be hidden

This patch adds markup to the OPAC library page so that CSS or JS can
more easily target elements of the page:

- Each library is wrapped in a div, e.g. <div id="section_CPL">
- Classes are added to the paragraphs containing phone, fax, URL, and
  library description.
- An ID has been added to the menu of libraries in the sidebar so that
  they can be targetted individually.

To test, apply the patch and go to Administration -> System prefernces.

- Add some testing CSS to the OPACUserCSS system preference, if
  necessary replacing "CPL" with a branchcode in your system:

  div#section_CPL,
  li#menu_CPL {
     font-size: 80%;
  }

- In the OPAC, view the "Libraries" page.
- In the view of all libraries you should see your CSS reflected in the
  section for that library.
- In the individual library view you should see the menu item for that
  library affected by your custom CSS.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>