ci: add drone config file

.drone.yml

@@ -0,0 +1,13 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+- name: test:all
+  image: cirrusci/flutter:stable
+  commands:
+    - PATH=$PATH:$HOME/.pub-cache/bin
+    - flutter doctor
+    - flutter pub global activate melos
+    - melos bs
+    - melos run test:all

packages/native_crypto/example/lib/pointycastle/aes_gcm.dart

@@ -3,10 +3,12 @@
 // -----
 // File: aes_gcm.dart
 // Created Date: 24/05/2022 16:34:54
-// Last Modified: 24/05/2022 17:15:22
+// Last Modified: 27/05/2022 17:36:31
 // -----
 // Copyright (c) 2022
 
+// ignore_for_file: implementation_imports
+
 import 'dart:typed_data';
 
 import 'package:pointycastle/export.dart';