fix(core): update

ts/index.ts

@@ -2,9 +2,9 @@ import * as plugins from './smartmongo.plugins';
 
 export class SmartMongo {
   // STATIC
-  public static async createInstance() {
+  public static async createAndInit() {
     const smartMongoInstance = new SmartMongo();
-    await smartMongoInstance.readyPromise;
+    await smartMongoInstance.init();
     return smartMongoInstance;
   }
 
@@ -14,7 +14,6 @@ export class SmartMongo {
   public mongod: plugins.mongoPlugin.MongoMemoryServer;
 
   constructor() {
-    this.init();
   }
 
   public async init() {