shipController and Camera Control

shipController is a script attached to the ship object. The Main Camera
object is now a child of the ship object.

Ship functions like a ship with tank controls. The main camera follows
behind the ship. The ship is a cube.
Fixed Merge (?) and Editor Settings
PerlinMap, ShipController updates

PerlinMap simplified to only include Mesh functionality. Updated
GetHeight() function to return smoother height updates and more
realistic buoyancy.

ShipController uses Input.GetAxis() instead of Input.GetKey() for easier
controller integration in the future.

Note: ShipController still has errors that need fixing.