Add Example for InteropLayer on RNTester (#51260)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51260

This is a preparatory change that adds an example to RNTester for the Fabric interop layer on iOS.
This example is needed to create a Jest E2E tests that will make sure that the Fabric Interop Layer can properly add views as subviews.

We discovered the bug thanks to react-native-maps.

## Changelog:
[Internal] - Add Example for the Fabric Interop Layer to RNTester iOS

Reviewed By: cortinico

Differential Revision: D74579737

fbshipit-source-id: 0c1bbb06790b01313cd98aa4b7152d8aba0cded3

packages/rn-tester/NativeComponentExample/ios/RCTInteropTestView.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface InteropTestView : UIView
+@end
+
+NS_ASSUME_NONNULL_END

packages/rn-tester/NativeComponentExample/ios/RCTInteropTestView.m

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTInteropTestView.h"
+
+@implementation InteropTestView
+
+- (instancetype)initWithFrame:(CGRect)frame
+{
+  self = [super initWithFrame:frame];
+  return self;
+}
+
+@end

packages/rn-tester/NativeComponentExample/ios/RCTInteropTestViewManager.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTViewManager.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface InteropTestViewManager : RCTViewManager
+@end
+NS_ASSUME_NONNULL_END

packages/rn-tester/NativeComponentExample/ios/RCTInteropTestViewManager.m

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTInteropTestViewManager.h"
+#import "RCTInteropTestView.h"
+
+@implementation InteropTestViewManager
+
+RCT_EXPORT_MODULE(InteropTestView)
+
+- (UIView *)view
+{
+  return [[InteropTestView alloc] init];
+}
+
+@end