Feature Request - Add support for persisting cloud creds

[adfoster-r7]

We would like an easy way of persisting AWS SECRET_ACCESS_KEY / ACCESS_KEY_ID / REGION information in Metasploit's database. We would need similar mechanism for GCP/Azure.

This would integrate well with:

• post/multi/gather/aws_keys
• AWS SSM Sessions metasploit-framework#17430

[sempervictus]

I think that this may be non-trivial to do correctly:
For normal "users" of those clouds - keys might be enough, but for us, pivots can mean role assumptions and hijacked session init URLs (SSM/IC/etc) or tokens provide "intermediate" credentials for accessing resources (legitimately or otherwise).
I think we may want to sketch an MDM model for this sort of thing first and wargame how we could use that a bit before we start hacking up the data model which we may later need to expand.