Refactor Piece class
Add move class
Implement Board class
Add header functions
Add toString method for Piece class
Refactor
Refactor Piece
Revert "Refactor Piece"

This reverts commit fe0208366a6675c1067a2f65f3f90d0ba3c0d036.
Revert "Refactor"

This reverts commit 834c8266c64492cf7e190c30c3199cf6f6996240.
Impletement toString for Piece
Refactor
Implement Board
test travis