add initial components and utility functions for simulation and builder modules

app/src/modules/builder/geomentries/pillars/deletePillar.ts

@@ -0,0 +1,21 @@
+import { toast } from 'react-toastify';
+
+import * as Types from "../../../../types/world/worldTypes";
+
+function DeletePillar(
+    hoveredDeletablePillar: Types.RefMesh,
+    floorGroup: Types.RefGroup
+): void {
+
+    ////////// Deleting the hovered Pillar from the itemsGroup //////////
+
+    if (hoveredDeletablePillar.current) {
+        (<any>hoveredDeletablePillar.current.material).dispose();
+        (<any>hoveredDeletablePillar.current.geometry).dispose();
+        floorGroup.current.remove(hoveredDeletablePillar.current);
+        toast.success("Pillar Removed!");
+        hoveredDeletablePillar.current = undefined;
+    }
+}
+
+export default DeletePillar;