Added some text files for reference on Java Mail file extensions. Pulled
previously written code from an earlier project(Language Blaster) for
dealing with automatically mailing clients/ contacts. Split up the work
of emailing and phoning to pairs of classes (numbers & address || phone
& email). The Phone and Email objects have protected methods to enable
utilizing one "Phone" and one "Email" client. Tring to think of this in
real world application. Don't want to instantiate x # of email clients
when the user will realistically have only 1 or 2 at the most.