### Godot version

4.0 beta 10

### System information

Windows 10, Vulkan Renderer

### Issue description

In 2D scenes with sprites, when the sprite's `flip_h` and/or `flip_v` property is enabled, the normal map is flipped with the image, causing lighting to be reversed. While this does technically make sense, in a game where You have a bunch of sprites that flip and use normal maps, the only solution is to generate normal maps for both facing directions.
![image](https://user-images.githubusercontent.com/47702559/209426338-6257d66c-a965-4793-a7bb-5a635a136267.png)

Ultimately the fix is simple: Invert the red channel in normal maps on horizontally flipped sprites, and invert the green channel on vertically flipped sprites.

### Steps to reproduce

1) Create a Sprite2D
2) Add a Diffuse Texture and Normal Map 
3) Add a 2D Light to the scene
4) Enable `flip_h` and/or `flip_v` on the Sprite2D

### Minimal reproduction project

[Normal not flipped.zip](https://github.com/godotengine/godot/files/10298203/Normal.not.flipped.zip)

case Item::Command::TYPE_CLIP_IGNORE: {
				const Item::CommandClipIgnore *ci = static_cast<const Item::CommandClipIgnore *>(c);
				if (current_clip) {
					if (ci->ignore != reclip) {
						if (ci->ignore) {
							RD::get_singleton()->draw_list_disable_scissor(p_draw_list);
							reclip = true;
						} else {
							RD::get_singleton()->draw_list_enable_scissor(p_draw_list, current_clip->final_clip_rect);
							reclip = false;
						}
					}
				}
			} break;
			case Item::Command::TYPE_ANIMATION_SLICE: {
				const Item::CommandAnimationSlice *as = static_cast<const Item::CommandAnimationSlice *>(c);
				double current_time = RendererCompositorRD::singleton->get_total_time();
				double local_time = Math::fposmod(current_time - as->offset, as->animation_length);
				skipping = !(local_time >= as->slice_begin && local_time < as->slice_end);
				RenderingServerDefault::redraw_request(); 
			} break;
		}
		c = c->next;
	}
	if (current_clip && reclip) {
		
		current_clip = nullptr;
	}
}
RID RendererCanvasRenderRD::_create_base_uniform_set(RID p_to_render_target, bool p_backbuffer) {