Add payment number and date. IO-610

hasura/migrations/1612810025041_run_sql_migration/down.yaml

@@ -0,0 +1 @@
+[]

hasura/migrations/1612810025041_run_sql_migration/up.yaml

@@ -0,0 +1,10 @@
+- args:
+    cascade: true
+    read_only: false
+    sql: |-
+      create trigger payments_assign_paymentnum before
+      insert
+          on
+          public.payments
+            for each row execute procedure assign_payment_number();
+  type: run_sql