added ON_TICK support for display entities

src/main/java/carpet/mixins/Display_scarpetEventMixin.java

@@ -0,0 +1,28 @@
+package carpet.mixins;
+
+import carpet.fakes.EntityInterface;
+import carpet.script.EntityEventsGroup;
+import net.minecraft.world.entity.Display;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.level.Level;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Display.class)
+public abstract class Display_scarpetEventMixin extends Entity
+{
+    public Display_scarpetEventMixin(final EntityType<?> entityType, final Level level)
+    {
+        super(entityType, level);
+    }
+
+    @Inject(method = "tick", at = @At("HEAD"))
+    private void onTickCall(CallbackInfo ci)
+    {
+        // calling extra on_tick because displays don't tick
+        ((EntityInterface)this).getEventContainer().onEvent(EntityEventsGroup.Event.ON_TICK);
+    }
+}