Based on the one created in the prototype phase, core components package should define a <ez-field-edit> custom element.
This custom element is responsible for handling the HTML5 validation of the wrapped HTML inputs. It will also probably serve as a base for Field edit custom element dedicated to a Field Type.

Note: a part of this story is also to analyze how validation message from the server can be re-used there. But in a first steps, <ez-field-edit> can only manage the validation style (suggested in https://ezsystems.github.io/ui-guidelines/#components-form) without handling a message.