Support for multiple table schemas

[mark-walle]

The verifyBackup function on (this line)[https://github.com/BCDevOps/backup-container/blob/59699357cc6908bc9f1d29c907eec54fffc86762/docker/backup.sh#L1198] uses a WHERE table_schema='${TABLE_SCHEMA}' condition, with TABLE_SCHEMA defaulting to public.

This works well when there is only one table schema value; however, across multiple databases or even within the same database, there may be multiple differing table schema values. In that case, the condition above would miss those schema.

[WadeBarnes]

Initial support, as described above was added in PR #29.

Support for changing the TABLE_SCHEMA on a per database level would need to be added to the database specification in the settings/config.

Perhaps something like this;
<Hostname/>[:<Port/>]/<DatabaseName/>[.<SchemaName/>]
postgresql:5432/TheOrgBook_Database.my_schema
Where:

• Database Serve Name: postgresql
• Database Port (Optional): 5432
• Database Name: TheOrgBook_Database
• Schema Name (Optional): my_schema