iOS: Deprecate iOS 9 / tvOS 9 SDK support

Summary:
It is time to target SDK version 10.0+.

Changelog: [iOS] [Deprecated] - Deprecating support for iOS/tvOS SDK 9.x, 10.0+ is now required

Reviewed By: mdvacca

Differential Revision: D19265731

fbshipit-source-id: 93b6f9e8f61c5b36ff69e80d3f18256aa96cc2c0

Libraries/NativeAnimation/React-RCTAnimation.podspec

@@ -26,7 +26,7 @@ Pod::Spec.new do |s|
   s.homepage               = "http://facebook.github.io/react-native/"
   s.license                = package["license"]
   s.author                 = "Facebook, Inc. and its affiliates"
-  s.platforms              = { :ios => "9.0", :tvos => "9.2" }
+  s.platforms              = { :ios => "10.0", :tvos => "10.0" }
   s.compiler_flags         = folly_compiler_flags + ' -Wno-nullability-completeness'
   s.source                 = source
   s.source_files           = "{Drivers/*,Nodes/*,*}.{m,mm}"