New Classes

Adding three new classes to program.

TProgram: Timer Program class. Contains a list of all the timers in a
program. Will eventually be able to be saved/loaded to/from file.

Timer: Timer class.  Contains a list of all the messages in a timer, as
well as its length (obviously).

Message: Message class. Contains time-from-end-of-timer value, which
will be used to determine when to display this message, as well as the
actual message itself.
Dynamic display of tprogram being created

Form2 window contains major changes. Mostly consist of panel1
dynamically displaying the contents of a tprogram.  Currently the
buttons that are created do nothing.