CLI: Make it more verbose

[ZarcoNontol]

Overview

We would like to get more information about errors, warnings, or instructions when deploying/publishing an app.
Even if we have a great doc, sometimes humans make mistakes, and providing output right away on the console will make the adjustments faster 😄 .

• Config Errors
• Config Warnings
• Publish Errors
• Publish Warnings
• Deploy Errors
• Deploy Warnings
• Once the deployment is already done we can provide a default URL so the app owner can take a look at the current deployment.
• Check if app.yml is set, otherwise notify the developer that we can't find it.
• create a apps deployed list command