Enable acs deploy + appinspect warnings

[pyth0n1c]

This set of changes adds acs_deploy functionality to contentctl 4.x. It is mostly a port and cleanup of how it was implemented in contentctl 3.x.

It also addresses some warnings that were present in Cloud Appinspect results.

Note that in order to get these changes in a pre-exisiting contentctl app, you may need to update files in your app_template folder. These changes have been made to app.conf, content-version.conf, and default.meta.