Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/contracts/sendico/api/parameters/limit.yaml

@@ -0,0 +1,11 @@
+components:
+  parameters:
+    Limit:
+      name: limit
+      in: query
+      description: Max number of items to return. Parsed as non-negative int64.
+      required: false
+      schema:
+        type: integer
+        format: int64
+        minimum: 0