Update custom-namespaces with a new section (#540)

Add a new section called `revenue private` for revenue review (budget, forecast etc)

custom-namespaces.yaml

@@ -392,6 +392,25 @@ revenue:
       type: table_view
       tables:
         - table: mozdata.stripe.itemized_payout_reconciliation
+revenue_private:
+  glean_app: false
+  connection: bigquery-oauth
+  pretty_name: Revenue Private
+  owners:
+    - [email protected]
+    - [email protected]
+    - [email protected]
+  spoke: looker-spoke-private
+  views:
+    revenue_forecast_review_2022:
+      type: table_view
+      tables:
+        - table: mozdata.revenue_cat3_analysis.revenue_forecast_review_long
+  views:
+    revenue_budget_2022:
+      type: table_view
+      tables:
+        - table: mozdata.revenue_cat3_analysis.budget_complete_2022       
 firefox_ios:
   owners:
     - [email protected]