Added dns rewrite rules list

lib/models/rewrite_rules.dart

@@ -0,0 +1,35 @@
+import 'dart:convert';
+
+class RewriteRules {
+  int loadStatus = 0;
+  List<RewriteRulesData>? data;
+
+  RewriteRules({
+    required this.loadStatus,
+    this.data
+  });
+}
+
+List<RewriteRulesData> rewriteRulesDataFromJson(String str) => List<RewriteRulesData>.from(json.decode(str).map((x) => RewriteRulesData.fromJson(x)));
+
+String rewriteRulesDataToJson(List<RewriteRulesData> data) => json.encode(List<RewriteRulesData>.from(data.map((x) => x.toJson())));
+
+class RewriteRulesData {
+  final String domain;
+  final String answer;
+
+  RewriteRulesData({
+    required this.domain,
+    required this.answer,
+  });
+
+  factory RewriteRulesData.fromJson(Map<String, dynamic> json) => RewriteRulesData(
+    domain: json["domain"],
+    answer: json["answer"],
+  );
+
+  Map<String, dynamic> toJson() => {
+    "domain": domain,
+    "answer": answer,
+  };
+}