Created a function that returns possible Ship directions when given an initial coordinate by User.
Implemented logic for checking possible Ship placement.
Implemented getting variable directions for Ships and added switch statement to check them for validity.
Refactored and implemented two functions (one to check down & right directions, the other for up and left directions) to help check and store available direction coordinates for our Ship.
Added function to Board class to set _board values to true if a ship is there.