(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/newgrf.cpp

@@ -3787,6 +3787,7 @@ void LoadNewGRFFile(GRFConfig *config, uint file_index, GrfLoadingStage stage)
 	}
 }
 
+void InitDepotWindowBlockSizes(void);
 
 void LoadNewGRF(uint load_index, uint file_index)
 {
@@ -3822,6 +3823,9 @@ void LoadNewGRF(uint load_index, uint file_index)
 
 	// Pre-calculate all refit masks after loading GRF files
 	CalculateRefitMasks();
+
+	/* Set the block size in the depot windows based on vehicle sprite sizes */
+	InitDepotWindowBlockSizes();
 }