DEV: Add optional ENV variables for MiniProfiler snapshots transporter...

DEV: Add optional ENV variables for MiniProfiler snapshots transporter (https://github.com/discourse/discourse/commit/a04c3004952ff228225cce28b5aa18cc45b1dfe2)

config/discourse.conf

@@ -80,6 +80,16 @@ load_mini_profiler = true
 # Default is never
 mini_profiler_snapshots_period = 0
 
+# specify the URL of the destination that MiniProfiler should ship snapshots to
+# mini_profiler_snapshots_transport_auth_key is required as well
+mini_profiler_snapshots_transport_url =
+
+# authorization key that will be included as a header in requests made by the
+# snapshots transporter to the URL specified above. The destination should
+# know this key and only accept requests that have this key in the
+# `Mini-Profiler-Transport-Auth` header.
+mini_profiler_snapshots_transport_auth_key =
+
 # recommended, cdn used to access assets
 cdn_url =