Complete cosmo_array numpy support and add cosmo_quantity

swiftsimio/__init__.py

@@ -8,6 +8,7 @@
 import swiftsimio.metadata as metadata
 import swiftsimio.accelerated as accelerated
 import swiftsimio.objects as objects
+from swiftsimio.objects import cosmo_array, cosmo_quantity, cosmo_factor, a
 import swiftsimio.visualisation as visualisation
 import swiftsimio.units as units
 import swiftsimio.subset_writer as subset_writer