feat: Add missing optional priority to SpriteBodyComponent (#1404)

* Add missing optional priority to SpriteBodyComponent

Gives you the option to set the priority directly when creating the component.

* Add optional parameter priority

Adds priority as an optional parameter

* removed wrong trailing comma

Added a comma at the wrong position.

packages/flame_forge2d/lib/sprite_body_component.dart

@@ -9,9 +9,14 @@ abstract class SpriteBodyComponent<T extends Forge2DGame>
  /// body that is create in createBody()
  SpriteBodyComponent(
  Sprite sprite,
- Vector2 spriteSize,
- ) : super(
- positionComponent: SpriteComponent(size: spriteSize, sprite: sprite),
+ Vector2 spriteSize, {
+ int? priority,
+ }) : super(
+ positionComponent: SpriteComponent(
+ size: spriteSize,
+ sprite: sprite,
+ priority: priority,
+ ),
  size: spriteSize,
  );
 }