Add ip-status command

[andrewhood-star]

Adds a new 'vagrant ip-status' command that displays base status output with each VM’s reported IP address when available.

This command reuses the provider’s existing 'ssh_info' / 'get_ssh_info' path, so IP lookup behavior remains consistent with the current vSphere guest IP detection logic.

This was intentionally implemented as a separate command rather than modifying Vagrant core’s existing 'status' command. The IP lookup behavior is provider-specific to vSphere, and keeping it separate preserves existing core Vagrant behavior.

Behavior:

• Lists machines in the current Vagrant environment
• Shows each machine name and Vagrant state
• Shows the vSphere-reported guest IP when available
• Displays '-' when an IP address is unavailable, the VM is not created, or the provider is not vSphere