Improved 'Ship' Class. And added 'Map' Component.

Setup ship class to simply draw the ship.

Added a new game component 'Map':

Which handles the level layout and gameplay.

Currently it simply uses an array of the 'Ship' class, to spawn ships at
the cursor location when the user presses: 'S'.

Added new 'asset': 'GreenFrig':
A simple placeholder for the Lincoln team ships of class Frigate.