Battleships tech test

This is a .net core 2.1 web api. Running the api on kestrel will open the swagger page where you can take the api for a spin.

POST /api/boards Will return a new board

POST /api/boards/{board}/battleship/{battleship}/add { "row": 3, "column": "B", "placement": "northSouth" } Will add the battleships returned in the new board to the board

POST /api/boards/{board}/attack { "column": "B", "row": 2 } Will return 404 or miss

POST /api/boards/{board}/attack { "column": "B", "row": 3..5 } Will return 200 or hit

POST /api/boards/{board}/attack { "column": "B", "row": 6 } Will return 410 gone or game over.

Tried to only implement the functionality needed. Unit tests have been added to cover the core logic.