Reduces visibility of internal fields/methods

Reduces the visibility of all fields to private and create setters/getters
when necessary. Exceptions are fields with GuiSync as these need to be
public.

Reduces the visibility of internal methods to private/protected/default when possible.

src/main/java/appeng/recipes/handlers/Grind.java

@@ -35,8 +35,8 @@ import appeng.util.Platform;
 public class Grind implements ICraftHandler, IWebsiteSerializer
 {
 
-	IIngredient pro_input;
-	IIngredient[] pro_output;
+	private IIngredient pro_input;
+	private IIngredient[] pro_output;
 
 	@Override
 	public void setup( final List<List<IIngredient>> input, final List<List<IIngredient>> output ) throws RecipeError