proposal: show more (all?) credentials in automate

[vjeffrey]

User Story

The credentials currently shown in the "node credentials" page are of type ssh, winrm, or sudo.
This means we do not show the aws/azure/gcp secrets, service now secrets, or any other new type of secret. In fact, those credentials are not "findable" anywhere in automate, as they are background processes.

We were discussing this when discussing the storage of the admin key for the organization attached to a chef server, and wondered...should we be showing more that just ssh/winrm/sudo credentials?

pls add your thoughts!

Aha! Link: https://chef.aha.io/features/SH-1314