Implement enrollment and MFA in CLI

[teon]

• Implement enrollment process (displaying in terminal the data + setting up phone, password)
• Implement TOTP MFA configuration (there are libraries to show QR codes in terminal)
• OR Email codes
• OpenID Connect
• Mobile Client Biometry
• Implement:
  • Displaying locations - CLI option 'list'
  • Connecting to a specific location 'connect [location name] --predefined --all-traffic' (with asking for MFA)
  • Disconnect from location
  • Status - what locations are connected with info
  • No UI but colors and status for connection if MFA/predefined can be used: https://github.com/ratatui/ratatui
• In documentation change how to handle Network Device - how to setup a systemd service that will connect to desired location (see wg-qruick systemd examples - we want to have: systemctl enable dg@location / systemctl status dg@location...)