Fix: CLI output for restatement plans

[treysp]

The CLI output for restatement plans has a number of issues:

1. The virtual update progress bar is created even though no virtual updates will occur
2. The physical layer SKIP message appears when no physical layer updates occur even though the user does not expect physical layer updates
3. The "no changes to plan" message is always produced even though the user knows there aren't changes

This PR fixes the first two issues and replaces the "no changes" message with Restating models.