CORD-1532: Fix pluralization in the GRPC API

Change-Id: I7c68ec2fae7fde9eb36b9d8d1d5fa918c8757de3
diff --git a/lib/xos-genx/xosgenx/targets/django.xtarget b/lib/xos-genx/xosgenx/targets/django.xtarget
index 20b4e51..67e25c5 100644
--- a/lib/xos-genx/xosgenx/targets/django.xtarget
+++ b/lib/xos-genx/xosgenx/targets/django.xtarget
@@ -17,6 +17,8 @@
 
 
 class {{ m.name }}{{ xproto_base_def(m.name, m.bases) }}:
+  plural_name = "{{ xproto_pluralize(m) }}"
+
   # Primitive Fields (Not Relations)
   {% for f in m.fields %}
   {%- if not f.link -%}
@@ -39,4 +41,4 @@
   pass
 
 {% if file_exists(xproto_base_name(m.name)|lower+'_bottom.py') -%}{{ include_file(xproto_base_name(m.name)|lower+'_bottom.py') }}{% endif %}
-{% endif %}{% endfor %}
\ No newline at end of file
+{% endif %}{% endfor %}