public class DetailsBlockContextProvider
Context provider for the details block
If a List of Fields is provided in the map under the key COMPOSED_BY_FIELDS,
this context provider will create the view models for each of the fields given
which can be rendered in order by detailsblock-composed.vm.
Otherwise this will consult the FieldVisibilityManager to determine whether
each field should display for the view issue page, and in some cases
it will not create a model if the field has no value.