support for prelogin kdf info

src/models/response/preloginResponse.ts

@@ -0,0 +1,11 @@
+import { KdfType } from '../../enums/kdfType';
+
+export class PreloginResponse {
+    kdf: KdfType;
+    kdfIterations: number;
+
+    constructor(response: any) {
+        this.kdf = response.Kdf;
+        this.kdfIterations = response.KdfIterations;
+    }
+}