Bug 18283 - Display improvements on report results - hide code and change wording

Bug 18283 - Display improvements on report results - hide code and change wording

This patch makes small display improvements to the report results page.

-Add toggle link for SQL code
-Change results count wording
-Add 'Notes:' label report notes

To test:
1 - Apply patch
2 - Run some reports
3 - Check that results page makes sense
4 - Hide and display code and ensure toggle works

Followed test plan, works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Christopher Brannon <cbrannon@cdalibrary.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>