Bug 16388: Move option to download report into reports toolbar

Bug 16388: Move option to download report into reports toolbar

To test:

1) Create a new SQL report or edit a report
2) Ensure that the download option does NOT show in the toolbar
3) Save and run the report
4) Confirm that download option DOES show in toolbar as a dropdown with
   the 3 options (csv, tab and ods)
5) Confirm that downloading all 3 file types works as expected

Sponsored-by: Catalyst IT
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>