RCTDeprecation cocoapods integration (#41416)

Summary:

Changelog: [Internal]

cocoapods boilerplate to integrate the first RCTFoundation library. decided to split this up so we can reference it easily in the future when adding new libs

Differential Revision: D51184321

packages/react-native/React-Core.podspec

@@ -128,6 +128,7 @@ Pod::Spec.new do |s|
   s.dependency "React-runtimescheduler"
   s.dependency "Yoga"
   s.dependency "glog"
+  s.dependency "RCTDeprecation"
 
   if use_hermes
     s.dependency 'React-hermes'

packages/react-native/ReactApple/Libraries/RCTFoundation/RCTDeprecation/RCTDeprecation.podspec

@@ -0,0 +1,25 @@
+# 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.
+
+require "json"
+
+package = JSON.parse(File.read(File.join(__dir__, "..", "..", "..", "..", "package.json")))
+version = package['version']
+
+Pod::Spec.new do |s|
+    s.name                   = "RCTDeprecation"
+    s.version                = version
+    s.author                 = "Meta Platforms, Inc. and its affiliates"
+    s.license                = package["license"]
+    s.homepage               = "https://reactnative.dev/"
+    s.source                 = { :git => 'https://github.com/facebook/react-native.git', :tag => 'v#{version}' }
+    s.summary                = "Macros for marking APIs as deprecated"
+    s.source_files           = "Exported/*.h"
+    s.pod_target_xcconfig    = {
+      "DEFINES_MODULE" => "YES",
+      "CLANG_CXX_LANGUAGE_STANDARD" => "c++20"
+    }
+    s.compiler_flags         = "-Wnullable-to-nonnull-conversion -Wnullability-completeness"
+  end

packages/react-native/scripts/react_native_pods.rb

@@ -128,7 +128,8 @@ def use_react_native! (
   pod 'React-utils', :path => "#{prefix}/ReactCommon/react/utils"
   pod 'React-Mapbuffer', :path => "#{prefix}/ReactCommon"
   pod 'React-jserrorhandler', :path => "#{prefix}/ReactCommon/jserrorhandler"
-  pod "React-nativeconfig", :path => "#{prefix}/ReactCommon"
+  pod 'React-nativeconfig', :path => "#{prefix}/ReactCommon"
+  pod 'RCTDeprecation', :path => "#{prefix}/ReactApple/Libraries/RCTFoundation/RCTDeprecation"
 
   if hermes_enabled
     setup_hermes!(:react_native_path => prefix)