Ability to use config_context with custom_objects

[erichester76]

Plugin Version

0.10.0

Proposed functionality

The ability to add config_context to custom objects for building configurations based on these new objects.

Use case

Would be very useful with ansible (future functionality) so that these new objects can be used to build configurations based on object types.

External dependencies

Although not dependent would be most useful with ansible.

[arthanson]

@mrmrcoleman To support this would probably require being able to add optional features (like config context) to a custom object type as I'm not sure we would want this on all COTs. Image Attachments are probably another one