add product serialize to broker - quota statistic by product

apps/product/services.py

@@ -0,0 +1,16 @@
+from apps.warehouse.models import InventoryEntry
+
+
+def get_products_in_warehouse(organization_id):
+    """ get lis of products from organization warehouse """
+
+    entries = InventoryEntry.objects.select_related(
+        'distribution__quota__product'
+    )
+
+    product_objects = [
+        entry.distribution.quota.product for entry in entries
+    ]
+
+    return list(set(product_objects))
+