#202 admin users cannot see data in views if not in ro_gs_fk

[Jason E. Stewart]

admin users should be able to see all data, even when
looking through a view - this is probably important for
using scratch views.

There should be a function is_admin() that returns true
if the user is in the genex_admin group. Then we can
make the sec view sql where clause be:

WHERE is_genex_admin() or ...