Add IVector benchmark (#59)

* Add IVector benchmark

* Add boxing benchmarks (#58)

* Add some benchmarks for IReference / nullable.

* Add some more delegate benchmarks.

* Fix merge error

Co-authored-by: Manodasan Wignarajah <mawign@microsoft.com>

BenchmarkComponent/BenchmarkComponent.cpp

@@ -91,12 +91,19 @@ namespace winrt::BenchmarkComponent::implementation
     {
     }
 
+    Windows::Foundation::Collections::IVector<winrt::hstring> createList()
+    {
+        std::vector<winrt::hstring> list;
+        return winrt::single_threaded_vector(std::move(list));
+    }
+
     ClassWithMarshalingRoutines::ClassWithMarshalingRoutines()
     {
         keyValuePairObject = createKeyValuePairObject();
         arrayObject = createArrayObject();
         nullableObject = createNullableObject();
         dictionary = createDictionary();
+        list = createList();
     }
 
     hstring ClassWithMarshalingRoutines::DefaultStringProperty()
@@ -138,6 +145,11 @@ namespace winrt::BenchmarkComponent::implementation
     {
         return dictionary;
     }
+
+    Windows::Foundation::Collections::IVector<winrt::hstring> ClassWithMarshalingRoutines::NewList()
+    {
+        return createList();
+    }
     
     Windows::Foundation::IInspectable ClassWithMarshalingRoutines::NewTypeErasedKeyValuePairObject()
     {

BenchmarkComponent/BenchmarkComponent.h

@@ -53,6 +53,7 @@ namespace winrt::BenchmarkComponent::implementation
         Windows::Foundation::IReference<INT32> nullableObject;
         Windows::Foundation::IReferenceArray<int> arrayObject;
         Windows::Foundation::Collections::IMap<hstring, BenchmarkComponent::WrappedClass> dictionary;
+        Windows::Foundation::Collections::IVector<winrt::hstring> list;
 
         Windows::Foundation::Collections::IKeyValuePair<hstring, IInspectable> createKeyValuePairObject();
         Windows::Foundation::IReference<INT32> createNullableObject();
@@ -92,6 +93,8 @@ namespace winrt::BenchmarkComponent::implementation
         BenchmarkComponent::WrappedClass NewWrappedClassObject();
         void NewWrappedClassObject(BenchmarkComponent::WrappedClass val);
 
+        Windows::Foundation::Collections::IVector<winrt::hstring> NewList();
+
         int32_t IntProperty();
         void IntProperty(int32_t value);
         winrt::event_token IntPropertyChanged(Windows::Foundation::EventHandler<int32_t> const& handler);

BenchmarkComponent/BenchmarkComponent.idl

@@ -90,6 +90,7 @@ namespace BenchmarkComponent
         void CallForInt(ProvideInt provideInt);
 
         Windows.Foundation.Collections.IMap<String, WrappedClass> ExistingDictionary{ get; };
+        Windows.Foundation.Collections.IVector<String> NewList();
 
         Windows.Foundation.IReference<Int32> NullableInt{ get; set; };
         Windows.Foundation.IReference<BlittableStruct> NullableBlittableStruct{ get; set; };