||Holds all of our static Constants in our project.
||Represents the ControlFile sent with a print job when the command
is 02 Receive Print Job.
||This encapsulates the control file and all of it's commands.
||The dataFile encapsulates the actual print job data that
we will send to the printer.
||The abstract super-class that represents the 2 files sent to us
from the CommandReceiveJob.
||Represents any print jobs sent to us.