Adding Users 100% completed.

GUI and Database related adding users completed.
Added User GUI, Course GUI: WIP.
Migrated User class to UserProperty class for better GUI interaction,
other data classes to be migrated. User class to be deleted.
Testing javaFx Jar
Finalised User Delete

User delete functionality has been completed, removes successfully from
the database and reflects visually in the application.
workspace.xml changes
extra commits causing merge issues