Adds Event system and automatic messages

source/Events/ElementCreatedEvent.ts

@@ -0,0 +1,10 @@
+import {Model} from "../Models/Model";
+
+export class ElementCreatedEvent<T extends Model = Model> {
+  constructor(
+    public readonly tableName: string, 
+    public readonly instanceValues: Partial<T>,
+    public readonly instanceId: number
+  ) {
+  }
+}