Validation Warning Messages

[mrjackdavis]

In some cases forms need soft validation, where a warning message is shown, but the field is still valid.

This should be considered as part of #1

And puts forward a case for each field to have an array of validation items. Where each item has a validation status and an associated message.

type ValidationInfo = {
  status: 'VALID' | 'INVALID' | 'LOADING' | 'WARN',
  message: string
};

type DataPath = string;

type FormValidationInfo = {
  [key:DataPath]:ValidationInfo
}