Bug 17663: Forgotten userpermissions from bug 14686

Bug 17663: Forgotten userpermissions from bug 14686

Bug 14686 added in a dbrev:
    (13, 'upload_general_files', 'Upload any file'),
    (13, 'upload_manage', 'Manage uploaded files');

But these were not added in userpermissions.sql somehow :)
So, what now?

This patch:
[1] adds them to userpermissions.sql as should have been done,
[2] adds a dbrev to add them for newer installs that did not run the
    14686 dbrev.

Test plan:
[1] Run this sql statement:
    DELETE FROM permissions WHERE code = 'upload_general_files' OR
        code = 'upload_manage'
[2] Run the db rev.
[3] Check if you see Tools/Upload (with sufficient perms).

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Mason James <mtj@kohaaloha.com>