Add unique aggregation key endpoint

atdb/requirements/base.txt

 Django==3.1.4
 djangorestframework==3.12.2
 django-filter==2.3.0
-psycopg2==2.8.6
+psycopg2-binary==2.9.3
 django-cors-headers==3.6.0
 django-extensions==3.1.0
 django-bootstrap-pagination==1.7.0