Alert if Upgrade will breach UC Limits

[pohlposition]

As workspaces are upgraded to UC, UCX will create additional objects (GROUPS, CREDENTIALS, LOCATIONS, CATALOGS, SCHEMAS, TABLES, VOLUMES, etc.)

Large customers may come close to hitting some of the soft limits.

UCX should alert the user that progressing with the migration may breach these limits and alert them if the upgrade step will come within 15% of the limit.

This can allow the user to decide if certain objects can be consolidated and merged, or if the soft limits can be increased via an ES ticket.