Bug 10622: add --sip and --nosip switches to koha-list

Bug 10622: add --sip and --nosip switches to koha-list

Just added those switches.

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: Magnus Enger <magnus@enger.priv.no>
I applied the patch on my local dev install, and then copied the
patched koha-list script to a couple of servers with actual
instances running off the packages, to test the script.
- It seems that the -h switch did not work before this patch, now
  both -h and --help works nicely
- --sip and --nosip work as expected, also in combination with
  --email and --noemail

The patch does not add --sip and --nosip to the man page for
koha-list, but I will do a followup for that.

Signed-off-by: Robin Sheat <robin@catalyst.net.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>