Add "--fast-deps" (using uv) flag to restore snapshot functionality

Now it's possible to run the "**comfy install**" command with the "**--fast-deps**" flag that significantly saves time on the installation process.

But restoring a snapshot process, especially with many nodes, still takes a lot of time, and adding this functionality can help to save years for users around the world.

It would be great to have the possibility to use it something like this:
`comfy node restore-snapshot snapshot.json --fast-deps`