Bug 26089: Add acquisitions-related reports to acquisitions sidebar menu

Bug 26089: Add acquisitions-related reports to acquisitions sidebar menu

This patch adds links to two acquisitions-related reports in the sidebar
menu shown on acquisitions pages: Acquisitions statistics wizard and
orders by fund.

To test, apply the patch and go to the Acquisitions page.

- If you are logged in as a user with permission to access reports you
  should see a new "Reports" heading in the sidebar menu and links to
  two reports.
- Confirm that the links work correctly.
- Log in as a user without reports permission and confirm that the
  section doesn't appear.

Signed-off-by: Brandon J <brandon.jimenez@inLibro.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>