IO-995 Update CSR to be a relationship.

hasura/migrations/1620339458298_track_all_relationships/down.yaml

@@ -0,0 +1,12 @@
+- args:
+    relationship: employee
+    table:
+      name: jobs
+      schema: public
+  type: drop_relationship
+- args:
+    relationship: jobsByEmployeeCsr
+    table:
+      name: employees
+      schema: public
+  type: drop_relationship

hasura/migrations/1620339458298_track_all_relationships/up.yaml

@@ -0,0 +1,20 @@
+- args:
+    name: employee
+    table:
+      name: jobs
+      schema: public
+    using:
+      foreign_key_constraint_on: employee_csr
+  type: create_object_relationship
+- args:
+    name: jobsByEmployeeCsr
+    table:
+      name: employees
+      schema: public
+    using:
+      foreign_key_constraint_on:
+        column: employee_csr
+        table:
+          name: jobs
+          schema: public
+  type: create_array_relationship