Added Artwork folder to project.
Added AnimatedBitmap class.
Renamed AnimatedBitmap to AnimatedSpriteSet.
Completed a simple version of the AnimatedSpriteSet (paints the entire
spriteset).
AnimatedSpriteSet now draws a single sprite.
AnimatedSpriteSet can now advance animations.
Added Change row/column methods to AnimatedSpriteset.
Explorer had its speed slowed down to a maximum of 100.
Graph is no longer visible on startup (but can be enabled with the g key).
Removed unused usings in Explorer.cs
Adventurer sprite now rotates.
Adventurer is now animated.
Adventurer now has draw, which basically decelerates the adventuere when he is
not accelerating.