Introduce experimental VirtualView (facebook#52519)

Summary:
Pull Request resolved: facebook#52519

Changelog: [Internal] - Experiment with intersection logic for VirtualViews in scrollView. Currently only on Android

### Changes in detail
`VirtualViewContainer` is held by the ScrollView and is lazily instantiated once a VirtualView tries to access.

Upon initial layout, a VirtualView will add itself to the container and report its updated `rect`. `VirtualViewContainer` holds a sorted list of VirtualViews and iterates through them to update mode

Reviewed By: yungsters

Differential Revision: D77313890

fbshipit-source-id: 30843143bf1828dcac9091479964e83934bf330c

Author: lunaleaps

packages/react-native/Package.swift

@@ -398,6 +398,7 @@ let reactFabric = RNTarget(
     "components/textinput/platform/ios/",
     "components/unimplementedview",
     "components/virtualview",
+    "components/virtualviewexperimental",
     "components/root/tests",
   ],
   dependencies: [.reactNativeDependencies, .reactJsiExecutor, .rctTypesafety, .reactTurboModuleCore, .jsi, .logger, .reactDebug, .reactFeatureFlags, .reactUtils, .reactRuntimeScheduler, .reactCxxReact, .reactRendererDebug, .reactGraphics, .yoga],
@@ -433,7 +434,7 @@ let reactFabricComponents = RNTarget(
     "conponents/rncore", // this was the old folder where RN Core Components were generated. If you ran codegen in the past, you might have some files in it that might make the build fail.
   ],
   dependencies: [.reactNativeDependencies, .reactCore, .reactJsiExecutor, .reactTurboModuleCore, .jsi, .logger, .reactDebug, .reactFeatureFlags, .reactUtils, .reactRuntimeScheduler, .reactCxxReact, .yoga, .reactRendererDebug, .reactGraphics, .reactFabric, .reactTurboModuleBridging],
-  sources: ["components/inputaccessory", "components/modal", "components/safeareaview", "components/text", "components/text/platform/cxx", "components/textinput", "components/textinput/platform/ios/", "components/unimplementedview", "components/virtualview", "textlayoutmanager", "textlayoutmanager/platform/ios"]
+  sources: ["components/inputaccessory", "components/modal", "components/safeareaview", "components/text", "components/text/platform/cxx", "components/textinput", "components/textinput/platform/ios/", "components/unimplementedview", "components/virtualview", "components/virtualviewexperimental", "textlayoutmanager", "textlayoutmanager/platform/ios"]
 )
 
 /// React-FabricImage.podspec

packages/react-native/React/Fabric/Mounting/ComponentViews/VirtualViewExperimental/RCTVirtualViewExperimentalComponentView.h

@@ -0,0 +1,24 @@
+/*
+ * 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>
+
+#import <React/RCTViewComponentView.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTVirtualViewExperimentalComponentView : RCTViewComponentView
+
++ (instancetype)new NS_UNAVAILABLE;
+- (instancetype)init NS_UNAVAILABLE;
+- (instancetype)initWithCoder:(NSCoder *)coder NS_UNAVAILABLE;
+
+- (instancetype)initWithFrame:(CGRect)frame NS_DESIGNATED_INITIALIZER;
+
+@end
+
+NS_ASSUME_NONNULL_END