Lighting fixes:

- Re-enabled lightsprites (glowing lamp sprites on lamps).
- Limb sprites use lightsprites instead of overriding the texture (positioned correctly now).
- Fixed lights that don't cast shadows not being rendered.

Barotrauma/BarotraumaClient/Source/Characters/Limb.cs

@@ -81,6 +81,7 @@ namespace Barotrauma
             if (LightSource != null)
             {
                 LightSource.Position = body.DrawPosition;
+                LightSource.LightSpriteEffect = (dir == Direction.Right) ? SpriteEffects.None : SpriteEffects.FlipVertically;
             }
 
             foreach (WearableSprite wearable in wearingItems)