Added email dll
Mail Sending

GUI now supports sending of mail. Regex for email validation added.
Regex Additon and Bug Fixes

Added regex for first name and last name validation. Fixed bug where
recipient email addresses in mail tab were not updated when selection
changes occured in contacts tab. Added tooltip for compose button
Merge branch 'GUI' of https://github.com/rmarliere/HolidayMailerGuardiansOfTheRepositoryCSCD350 into TestMerge
Removed bin and debug folders