Initial checkin
Major rewrite of all classes related to gameplay (Song, Steps, Player,
WindowDancing and all its UI elements).  All of the dancing UI elements
have been consolidated into the Player class, which simplifies things a
great deal.  Steps and the classes that use them have been generalized
to use a variable number of panels (6 panel, 8 panel).  Only a little more
work is needed on the ColorArrows portion of Player to fully support these
panel modes.
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Eliminated the need for having an arrow graphic in every direction by
rotating a single arrow that points to the left.
cleaned up support for multiple game modes
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Rewrote texture loading actor and sprite
added utility for generating fonts
rewrite of input handling
cleanup of textures and fix of many misc bugs
more small changes...
added directx and divx checkers and divx auto installer
rewrite of BitmapText (still needs work) and support for BPM changes.
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rewrite of all Draw() functions
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