[FEATURE] Allow to set catalog isolation mode with `databricks_database_database_catalog`

[jeremy-aithon]

Use-cases

Similar to databricks_catalog, the isolation mode parameter should be exposed when provisioning a database catalog via databricks_database_database_catalog.

Proposal

Add the ability to provide the catalog isolation mode via the create database catalog endpoint and add setting in the databricks_database_database_catalog resource.

resource "databricks_database_database_catalog" "this" {
  name = "my_registered_catalog"
  database_instance_name = "my-database-instance"
  database_name = "databricks_postgres"
  isolation_mode = "ISOLATED"
}