Update player ship sprite

[DanMorriss]

The ship has 6 states:

• stationary
• stationary with a bullet being shot
• stationary with a double bullet being shot
• moving
• moving with a single bullet being fired
• moving with a double bullet being fired

There is also 4 options for the bullets:

• single the same size as in the ship sprite
• double the same size
• single without any whitespace
• double without any white space