List of resources created

I think the initial startup example is great. Seems like magic.

But I kind of wanted a command to have chalice show me all the resources that it had created on my behalf. Kind of an inventory. Just so I could get a better understanding of what was behind the magic.

The issue names no files, tests, or entry points. Start by locating the CLI command that performs startup deployment and the code that creates AWS resources; define the inventory output and add coverage for the new command. Done means users can run a command and see the resources created for their app.

Written by the indexing model from the issue text.