Add Glue Catalog auto-mounting in Redshift Serverless construct

[vgkowski]

Glue catalog can be auto-mounted in Redshift
https://docs.aws.amazon.com/redshift/latest/mgmt/query-editor-v2-glue.html

We should provide the option to auto-mount in Redshift serverless. The construct would automate the configuration (IAM/LF permissions, Redshift DDL...)