Add backwards compat

Author: ajworkos

workos/types/organizations/__init__.py

@@ -1,4 +1,6 @@
 from .domain_data_input import *
 from .organization_common import *
 from .organization import *
+
+# re-exported for backwards compatibility, can be removed after version 6.0.0
 from workos.types.organization_domains import OrganizationDomain