Create a function that takes the name of a chess piece, its position and a target position. The function should return True if the piece can move to the target and False if it can't.
The possible inputs are "Pawn", "Knight", "Bishop", "Rook", "Queen" and "King".
can_move("Rook", "A8", "H8") ➞ True
can_move("Bishop", "A7", "G1") ➞ True
can_move("Queen", "C4", "D6") ➞ False