Added media loaded listeners to the add clip that will notify when the
clip is ready.
Added tape test methods for constructor, name, and addcliptype.
Experimenting with JavaFX and media player controls. I've got
VideoPlayer pretty much working!
Experimenting with JavaFX Gui controls and media player.
Moved loadMediaMetaData method from Tape to Clip and got it working. It
is tested in ClipTest and TapeTest now runs successfully as well,
although it's not finished. Turns out I just needed to instantiate a
JFXPanel in the @Before of the unit test.

I have a few other things here too but I don't remember all of them
because I've been playing around for the past few months here and there.
Did some more work on the clip types behavior now. It seems to work in
unit tests! I did away with the typeID junk and just use the strings
themselves now.

I also began adding some junk code to MainWindow to serialize a tape,
but it seems Media isn't serializable. Not sure what I'm gonna do about
that.