Field classes not assigned to Paragraph type fields

Problem/Motivation

the field formatter class is not applied if the field if the field is "entityref to parapraph" type. i have tried with nodes and eck types and both fail.

Steps to reproduce

• create either a node or eck entity
• add a text field and add field formatter class in display
• create entity or node and fill in text field.
• observe class applied on rendered output.
• add a paragraph field to same entity and add a field formatter class in display
• note absence of class on rendered field.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes