New table and endpoints for service contact lists.

- Table to store meta data for the emergency contact list for a service.
- Endpoint for fetching contact lists for service
- Endpoint for saving contact list for service.

The list will be stored in S3. The service will then be able to send emergency announcements to staff.

app/service/service_contact_list_schema.py

@@ -0,0 +1,16 @@
+from app.schema_validation.definitions import uuid
+
+create_service_contact_list_schema = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "POST create service contact list schema",
+    "type": "object",
+    "title": "Create service contact list",
+    "properties": {
+        "id": uuid,
+        "original_file_name": {"type": "string"},
+        "row_count": {"type": "integer"},
+        "template_type": {"enum": ['email', 'sms']},
+        "created_by": uuid
+    },
+    "required": ["id", "original_file_name", "row_count", "template_type", "created_by"]
+}