Set schema. Remove examples.

models/staging/schema.yml

@@ -0,0 +1,21 @@
+
+version: 2
+
+models:
+  - name: stg_core_user
+    description: "The staging version of Core's User table. Do not confuse with SuperhogUser."
+    columns:
+      - name: id_user
+        description: "The primary key for this table"
+        tests:
+          - unique
+          - not_null
+
+  - name: stg_core_superhog_user
+    description: "The staging version of Core's SuperhogUser table. Do not confuse with User."
+    columns:
+      - name: id_superhoguser
+        description: "The primary key for this table"
+        tests:
+          - unique
+          - not_null