Update actions and items on InformationTemplate

[admin-bfd]

Adds additional functionality to the InformationTemplate for updating actions and items. A CPInformationTemplates items and actions can be updated by assigning it a new array.

https://developer.apple.com/documentation/carplay/cpinformationtemplate/3664504-items https://developer.apple.com/documentation/carplay/cpinformationtemplate/3664502-actions