Add support for running GitLab Geo tracking database

Secondary Geo Nodes will need a separate PostgreSQL tracking database to store progress. This MR depends on https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1197.

doc/set-up-gdk.md

@@ -86,6 +86,7 @@ cd gdk-geo
 echo 3002 > port
 echo 3807 > webpack_port
 gdk install gitlab_repo=https://gitlab.com/gitlab-org/gitlab-ee.git
+make geo-setup
 ```
 Now that you've installed a primary and a secondary GDK instance, follow the

[Robert Speicher]

Currently this is only performed in the secondary (gdk-geo) instance, but I'm not sure if that's correct.

[Stan Hu]

How does the replica get set up?

[Robert Speicher]

@stanhu That's part of the next instruction, where they follow the replication guide.

Do we need to do this after replication setup?

[Robert Speicher]

Just noticed the intro for that guide is missing some information, opened https://gitlab.com/gitlab-org/gitlab-development-kit/merge_requests/285 to address.