Provide Guidance After build:project:create failures

[aweingarten]

If a failure occurs during build:project:create it's unclear how to fix the issue that failed, and then how to resume the process to get the project created. I had to delete the github repo, and the panthon site in order to get to a state where I could restart from scratch.

Ideally there would be a command the use could run to resume the process where it failed.