Add GunBoat unit

[KOYK]

I am working on adding navy in the mod the first unit to be added is the gunboat.

I made alot of rendering but the end result was a ship that was not centered, that means the turret was going in the wrong place every time the ship was turning around, also the trails trait was not centered as well and the end result was to have the "sea wave" effect to overlap the ship in certain frames.

after that I used and edited a voxel from ra2, unfortunaly the voxel had some other issue, the turret getting lower that the ship it self, when the ship faced south, and when the ship was faceing north, then the turret was getting higher than the ship it self.

Any way, the idea is that the ship will be larger than ra counter parts. "Life size" that means you won't see a ship as tall as a rifleman, but a ship that has a size based on reality.

The gunboat will have the ability to use a forward turret and a missile battery on its back.