Implement Encapsulation and inheritance nicely

[naikibro]

Ship

We can make every child class of Ship implement an interface to ensure they all have common behaviors

Interface - ShipInterface

I think the ships could have in common:

• a method to display a console message when ship is hit
• a method to display a console message when ship is destroyed
• a method to display a scoreboard message when ship is hit
• a method to display a scoreboard message when ship is destroyed

The goal would be to have a scholar example of Implement and extends inside our code base so we can reference it in the README.md

Output

• implement an interface and a parent <-> childs relationship
• update the README to highlight these concepts we implemented