Enhance the application passwords handling from the command line

[pmarini-nc]

The application passwords handling from the command line can be improved by adding more commands and by enhancing the existing one (user:add-app-password)

This would enable the administrator to centralize the application password operations at the command line and pave the way for application passwords handling automation.

I suggest the following enhancements:

1. add a delete-app-password: this deletes a given application password. This can be also extended to delete all the passwords for a given user.
2. add a list-app-password: this lists the application passwords
3. let the user define the app password name (now it is 'cli')
4. give the option to json-format the output
5. let the user define the app password lifetime (ex. 10 minutes)

This would complement the expected fix of the defect #26563

[pmarini-nc]

Just opened an issue in the documentation repository as user:add-app-password is not documented: nextcloud/documentation#7805

[joshtrichards]

Most of these have since been implemented in #40026 (exceptions are items 3 & 5 above)
Docs addition was missing. Pending in nextcloud/documentation#12331