(svn r8661) -Fix: [depot windows] Enlarge the blocks in the depot window if a sprite is too big to fit (ships and aircraft only)

-Codechange: depot windows default now makes a 1x1 matrix and resize the window by block size*number of blocks
   This will make less vehicle type specific code and easier to read resizing based on sprite sizes

src/ship.h

@@ -8,6 +8,7 @@
 void CcBuildShip(bool success, TileIndex tile, uint32 p1, uint32 p2);
 void CcCloneShip(bool success, TileIndex tile, uint32 p1, uint32 p2);
 void RecalcShipStuff(Vehicle *v);
+void GetShipSpriteSize(EngineID engine, uint &width, uint &height);
 
 static inline bool IsShipInDepot(const Vehicle* v)
 {