start implement generator code

examples/client_app/lib/my_service.dart

@@ -0,0 +1,12 @@
+import 'package:cherrypick_annotations/cherrypick_annotations.dart';
+
+part 'my_service.cherrypick_injectable.g.dart';
+
+@Injectable()
+class MyService {}
+
+// где-то в main:
+void init() {
+  $initCherrypickGenerated();
+  // ... остальной код
+}