misc: migrate DatatablesResponse class to separate file

Author: shanmukhateja

demo/src/app/basic/server-side-angular-way.component.ts

@@ -1,13 +1,7 @@
 import { Component, OnInit } from '@angular/core';
-import { HttpClient, HttpResponse } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 import { Person } from '../person';
-
-class DataTablesResponse {
-  data: any[];
-  draw: number;
-  recordsFiltered: number;
-  recordsTotal: number;
-}
+import { DataTablesResponse } from 'app/datatables-response.model';
 
 @Component({
   selector: 'app-server-side-angular-way',

demo/src/app/datatables-response.model.ts

@@ -0,0 +1,6 @@
+export class DataTablesResponse {
+  data: any[];
+  draw: number;
+  recordsFiltered: number;
+  recordsTotal: number;
+}