[autolinking] Patch react podspec for swift integration

[Kudo]

Why

there are tons of mixing swift and objc issues in expo-modules-core. e.g.

• include of non-modular header inside framework module when prebuild expo-modules-core
• sometimes swift functions cannot be loaded if there are react types.

the root cause is that clang doesn't generate submodules correctly. although clang can transform #import <React/RCTBridge.h> to @import React.RCTBridge;, clang cannot do it right as React.RCTBridge submodule doesn't exist. as swift only know modules, this will cause lots of problems when we use react types in swift.

How

• patch React-Core.podspec with custom modulemap for clang to generate submodules correctly. (details in code comment)
• replace original CocoaPods PodTarget monkey patch with Sandbox. this new approach can patch podspec on the fly.

Test Plan

• CI passed
• to further check what's the difference for the change, you can enable BUILD_LIBRARY_FOR_DISTRIBUTION for expo-modules-core pod project and check the swiftinterface for ExpoModulesCore.
  e.g. /Users/kudo/Library/Developer/Xcode/DerivedData/BareExpo-brnnteedtepltiasryrqyexlvweu/Build/Products/Debug-iphonesimulator/ExpoModulesCore/ExpoModulesCore.swiftmodule/x86_64-apple-ios-simulator.swiftinterface

@_inheritsConvenienceInitializers @objc final public class ViewModuleWrapper : ExpoModulesCore.RCTViewManager {

before: it's ExpoModulesCore.RCTViewManager

@_inheritsConvenienceInitializers @objc final public class ViewModuleWrapper : React.RCTViewManager {

after: it's React.RCTViewManager

Checklist

• Documentation is up to date to reflect these changes (eg: https://docs.expo.dev and README.md).
• This diff will work correctly for expo build (eg: updated @expo/xdl).
• This diff will work correctly for expo prebuild & EAS Build (eg: updated a module plugin).

[Kudo]

there was an issue to have a different checksum on CI. the module_map is an absolute path and my path is different to CI. so i've add further patch sandbox.rb to keep original the checksum. the CI is green now, i'm going to merge this and working on the react delegate pr.