fixed bug, highlight exclusion for squares already with ships
Update Ship.java

fixing highlight squares bug
Update Battleship.java

fixing square highlighting
Update Board.java

fixing highlighting square
Update Board.java

fixing highlight squares issue
Update Battleship.java

fixing highlighted square
Update Board.java

adding multiple color highlight
Update Drawer.java

implementing multi color highlight on grid
finished multi color highlighting and removed ship collision on grid
attempted to cleanup highlights  squares, only ended up renaming it
added new graphics, changed rotation