implemented basic filter creation during product search

products/utils.py

@@ -0,0 +1,9 @@
+
+def extract_search_filters(result_set):
+    filters = set()
+
+    for item in result_set:
+        tags = item.tags.all()
+        for tag in tags:
+            filters.add(tag.name)
+    return list(filters)