Removed shadow when rendering an NPC that shouldn't be visible to a specific player after using setVisibleTo().

src/main/java/noppes/npcs/client/renderer/RenderNPCInterface.java

@@ -73,7 +73,7 @@ public class RenderNPCInterface extends RenderLiving{
     
     public void doRenderShadowAndFire(Entity par1Entity, double par2, double par4, double par6, float par8, float par9){
     	EntityNPCInterface npc = (EntityNPCInterface) par1Entity;
-    	if(!npc.isKilled())
+    	if(!npc.isKilled() && !npc.scriptInvisibleToPlayer(Minecraft.getMinecraft().thePlayer))
     		super.doRenderShadowAndFire(par1Entity, par2, par4, par6, par8, par9);
     }