Gets or sets an array containing the bitmaps for the sprites' animation. The Sprties'
FrameCount, Width and Height properties should be set match the bitmap array. This
property is provided as loading the animation bitmap into a new Sprite takes a significant
time, depending upon the number of frames in the animation. This property allows a
"stock" Sprite to be maintained and its' bitmap to be used to save processing time.
Syntax: FrameBitmaps As Bitmap()