- add pgsql backend capabilities for grafana
- create/manage pgsql database for grafana
- fix psql_is_slave fact to work on all current patroni clusters
- fix extra } in resources
- fix unless in psql grant commands
- fix add database owner
- fix disabled schema permissions, the unless didnt work
- ensure a database, user and credential is created for each grafana node
- ensure all databases for a region are included in a mariadb cluster
- refine params with stdlib types
