Add container system version with format yaml

[tico88612]

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update

Motivation and Context

Fixed #1156

Testing

• Tested locally
• Added/updated tests
• Added/updated docs

[jglogan]

@tico88612 Adding YAML as a format option is a nice addition, but could you have a look at all the different list and inspect commands and see if you can find a refactoring so that you can do follow-on PRs for other resources without repeating so much code?

[tico88612]

but could you have a look at all the different list and inspect commands and see if you can find a refactoring so that you can do follow-on PRs for other resources without repeating so much code?

Maybe I will send another PR to do this.

[jglogan]

No changes are necessary on this one but we need to wait on merging the Package.swift change that includes Yams. Should be a matter of days.

[realrajaryan]

I was gonna consolidate the formatting logic into one - was thinking we'd extract the if json / if quiet / else table rendering logic from each list command into a ListDisplayable protocol (defining tableHeader, tableRow, quietValue) and a pair of free functions: printList() for table/quiet rendering and printJSON() for JSON encoding. Each command keeps its own --format and --quiet flags with domain-specific help text, handles JSON by calling printJSON() on its raw data model, then calls printList() for table/quiet -- so JSON encoding stays decoupled from display, and each command is just like "if json, encode raw data and return; otherwise map to display type and call printList()" @tico88612