feat: Add new managed setupassistant payload

[clburlison]

This is a breaking api change since I've modified the old setup assistant to use node['cpe_setupassistant']['once'].

This allows us to use the 'SkipCloudSetup' key that was introduced in 10.10. reference

[erikng]

I'll test this tomorrow and report back, but everything looks good.

[clburlison]

Don't merge yet. Since Apple released the following https://developer.apple.com/library/content/featuredarticles/iPhoneConfigurationProfileRef/Introduction/Introduction.html

I'll add these options with comments. Note Apple's docs has the SkipCloudSetup key availably OS version incorrect.

SkipCloudSetup	Boolean	Optional. If true, skip the Apple ID setup window.Availability: Available in macOS 10.12 and later.
SkipSiriSetup	Boolean	Optional. If true, skip the Siri setup window.Availability: Available in macOS 10.12 and later.
SkipPrivacySetup	Boolean	Optional. If true, skip the Privacy consent window.Availability: Available in macOS 10.13.4 and later.
SkipiCloudStorageSetup	Boolean	Optional. If true, skip the iCloud Storage window.Availability: Available in macOS 10.13.4 and later.

[clburlison]

I've added the new 10.13.4 keys.

[erikng]

@clburlison can you add a newline to the attributes file?

[erikng]

and the resources file.

[erikng]

There are a few issues I've found with this and I think I ultimately know the issue. I'm going to rewrite it and keep your documentation/key structure/UUIDs.

Thanks for doing the first part.