Initial Refactor of GUI

Started refactoring of GUI. Not yet aligned. Background colors given to
help in aligning. Commented out old code, and am only working on encrypt
portion of the GUI for now. Later will be the decrypt portion.
Pulled Code from Master Branch

Pulled code from the Master Branch to this branch. This branch will be
to create a new GUI setup where the user will only have two modes to
choose from: Encrypt, Decrypt. In effect, the user will only see options
for one of the modes at a time. This should make for an easier UX, and a
cleaner GUI.
Removed Unnecessary Try/Catch Statements

For the WavHeader, WavFormatChunk, and WavDataChunk classes, I removed
the try/catch statements. This was done so that the
Audio_Steganography_Driver would catch the Exceptions and decide what to
do from there which is more appropriate.
Refactored GUI and Added Validation Code

The GUI is now more user friendly and pleasing to the eye. Added
validation code for "goButton", "playButton", and "stopButton" so that
they are only enabled when the necessary input is given. Added a reset
button as well that resets the whole form. Added a new class
"MyDocumentListener" that helps in validating the password and message
fields.
Merged master. Fixed conflict.