Consider how to delete stateful prod resources from CLI

[Prakash-Sundaresan]

Stateful resources like logs, databases, etc. are currently not deleted (intentionally) when you do a 'defang down'.
We should consider ways to accomplish this.

• add --force flag to delete everything, everywhere, all at once

[nullfunc]

@Prakash-Sundaresan There will be some limits to what can be done depending on the resource, for instance GCP Firestore databases do not (currently) have a pulumi API to delete database. Should this issue include options on restoring from backups?