Modified GameOver ASCII art, and fixed skewness

Created new class, TextAnimation.
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This class takes care of drawing a string to a JTextArea with a
specified delay between each line. It implements the runnable interface
so it can be used in a new Thread and not interfere with other GUI
component processing.

TextAnimation also provides a method to convert a text file into a
single string.

GameOver
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*Added constants representing the file names of the winning and losing
ASCII art

*Added new method to streamline process of displaying ASCII art

New Files
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*Created winningASCIIArt and losingASCIIArt
that holds the winning/losing ASCII art, respectively.