Time for action – update Game1 to draw animated pieces

1. Add methods to the GameBoard class to draw each potential type of game piece (empty, animated, and non-animated):

   Private Sub drawEmptyPiece(
       spriteBatch As SpriteBatch,
       pixelX As Integer, pixelY As Integer)
   
     spriteBatch.Draw(
         playingPieces,
         New Rectangle(pixelX, pixelY,
             GamePiece.PieceWidth, GamePiece.PieceHeight),
         EmptyPiece,
         Color.White)
   End Sub
   
   Private Sub drawStandardPiece(
       spriteBatch As SpriteBatch,
       x As Integer, y As Integer,
       pixelX As Integer, pixelY As Integer)
   
     spriteBatch.Draw(
         playingPieces,
         New Rectangle(pixelX, pixelY,
             GamePiece.PieceWidth, GamePiece.PieceHeight),
         GetSourceRect(x, y),
         Color.White)
   End Sub
   
   Private Sub drawFallingPiece(
       spriteBatch As SpriteBatch,
       pixelX As Integer, pixelY As Integer,
       position As String)
     spriteBatch.Draw(
         playingPieces,
         New Rectangle(
           pixelX,
           pixelY - FallingPieces...