add users/remove-2fa command

[i-just]

Description

Adds users/remove-2fa CLI command.

• It requires the user for whom you’d like to perform the removal (the ID, username, or email address of the user account).
• You can choose to remove all two-step verification methods or a selected one.
• As with removing via the Control Panel, if you remove the last non-Recovery Codes method, the Recovery Codes will be removed too.

Related issues

cms-1327
#15991

[linear]

CMS-1327 CLI to remove 2fa

[timkelty]

@i-just @brandonkelly I pushed a tweak to normalize the action ID to remove-2fa. Looks like Yii's sluggification doesn't consider alpha-to-number a break.

[i-just]

Thanks @timkelty!