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.

Makefile

@@ -198,7 +198,7 @@ gitlab/config/database_geo.yml:
 postgresql/geo:
 	${postgres_bin_dir}/initdb --locale=C -E utf-8 postgresql-geo/data
-	grep '^postgresql-geo:' Procfile || (printf ',s/^#postgresql-geo/postgresql/\nwq\n' | ed -s Procfile)
+	grep '^postgresql-geo:' Procfile || (printf ',s/^#postgresql-geo/postgresql-geo/\nwq\n' | ed -s Procfile)
 	support/bootstrap-geo
 .PHONY:	foreman