Add complex DI benchmarks, main runner, and English README with summarized results for cherrypick core

benchmark_cherrypick/lib/async_chain_benchmark.dart

@@ -0,0 +1,40 @@
+import 'package:benchmark_harness/benchmark_harness.dart';
+import 'package:cherrypick/cherrypick.dart';
+
+class AsyncA {}
+class AsyncB {
+  final AsyncA a;
+  AsyncB(this.a);
+}
+class AsyncC {
+  final AsyncB b;
+  AsyncC(this.b);
+}
+
+class AsyncChainModule extends Module {
+  @override
+  void builder(Scope currentScope) {
+    bind<AsyncA>().toProvideAsync(() async => AsyncA()).singleton();
+    bind<AsyncB>().toProvideAsync(() async => AsyncB(await currentScope.resolveAsync<AsyncA>())).singleton();
+    bind<AsyncC>().toProvideAsync(() async => AsyncC(await currentScope.resolveAsync<AsyncB>())).singleton();
+  }
+}
+
+class AsyncChainBenchmark extends AsyncBenchmarkBase {
+  AsyncChainBenchmark() : super('AsyncChain (A->B->C, async)');
+  late Scope scope;
+
+  @override
+  Future<void> setup() async {
+    scope = CherryPick.openRootScope();
+    scope.installModules([AsyncChainModule()]);
+  }
+  @override
+  Future<void> teardown() async {
+    CherryPick.closeRootScope();
+  }
+  @override
+  Future<void> run() async {
+    await scope.resolveAsync<AsyncC>();
+  }
+}