We want to remove/refactor the whole ModelValidator class as part of the
Doctrine refactor.
This commit moves the method ModelValidator::validateNonRoleEmail() to a
new Validator class as the method is not used by the validator system of
the Paris models. ModelValidator::validateEmail() was also moved as it
is called by ModelValidator::validateNonRoleEmail().
[MAILPOET-4343]
Remove the following errors from Subscribers\ImportExport\Import\MailChimp:
(Method|Property|Function) has no (return )?type specified.
(Method|Function) has parameter with no type (specified).
[MAILPOET-3720]
Remove the following errors from Subscribers\ImportExport\Import\Import:
(Method|Property|Function) has no (return )?type specified.
(Method|Function) has parameter with no type (specified).
I have also added a few checks when using count and typed the arrays when possible.
[MAILPOET-3720]
