BREAKING - Update podspecs to support and default to the C++ bridge

Summary:
This will require people who use CocoaPods to update their Podfiles.  You can see an example of a Podfile set up to use the Cxx bridge here: https://github.com/mhorowitz/native-navigation-boilerplate/blob/master/ios/Podfile
If this doesn't work, you can continue to use the old bridge by adding a dependency of 'BatchedBridge' to the React subspecs in your Podfile, but this will stop working once the old bridge is removed.

Reviewed By: javache

Differential Revision: D4981920

fbshipit-source-id: 7c4f3bf1c3f9af3f934f03ec003a05d0cd3cb259

third-party-podspecs/DoubleConversion.podspec

@@ -0,0 +1,17 @@
+Pod::Spec.new do |spec|
+  spec.name = 'DoubleConversion'
+  spec.version = '1.1.5'
+  spec.license = { :type => 'BSD' }
+  spec.homepage = 'https://github.com/google/double-conversion'
+  spec.summary = 'Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles'
+  spec.authors = 'Google'
+  spec.prepare_command = 'mv src double-conversion'
+  spec.source = { :git => 'https://github.com/google/double-conversion.git',
+                  :tag => "v#{spec.version}" }
+  spec.module_name = 'DoubleConversion'
+  spec.source_files = 'double-conversion/*.{h,cc}'
+
+  # Pinning to the same version as React.podspec.
+  spec.platform = :ios, '8.0'
+
+end

third-party-podspecs/Folly.podspec

@@ -0,0 +1,43 @@
+Pod::Spec.new do |spec|
+  spec.name = 'Folly'
+  spec.version = '2016.09.26.00'
+  spec.license = { :type => 'Apache License, Version 2.0' }
+  spec.homepage = 'https://github.com/facebook/folly'
+  spec.summary = 'An open-source C++ library developed and used at Facebook.'
+  spec.authors = 'Facebook'
+  spec.source = { :git => 'https://github.com/facebook/folly.git',
+                  :tag => "v#{spec.version}" }
+  spec.module_name = 'folly'
+  spec.dependency 'boost'
+  spec.dependency 'DoubleConversion'
+  spec.dependency 'GLog'
+  spec.compiler_flags = '-DFOLLY_NO_CONFIG -DFOLLY_MOBILE=1 -DFOLLY_USE_LIBCPP=1'
+  spec.header_mappings_dir = 'folly'
+  spec.source_files = 'folly/*.h',
+                      'folly/Bits.cpp',
+                      'folly/Conv.cpp',
+                      'folly/Demangle.cpp',
+#                      'folly/File.cpp',
+                      'folly/StringBase.cpp',
+                      'folly/Unicode.cpp',
+                      'folly/dynamic.cpp',
+                      'folly/json.cpp'
+  spec.pod_target_xcconfig = { "USE_HEADERMAP" => "NO",
+                               "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)\" \"$(PODS_ROOT)/boost\" \"$(PODS_ROOT)/DoubleConversion\"" }
+
+  # Pinning to the same version as React.podspec.
+  spec.platform = :ios, '8.0'
+
+  spec.subspec "detail" do |ss|
+    ss.header_dir = 'folly/detail'
+    ss.source_files = 'folly/detail/*.h',
+                      'folly/detail/MallocImpl.cpp'
+  end
+
+  spec.subspec "portability" do |ss|
+    ss.header_dir = 'folly/portability'
+    ss.source_files = 'folly/portability/*.h',
+                      'folly/portability/BitsFunctexcept.cpp'
+  end
+
+end

third-party-podspecs/GLog.podspec

@@ -0,0 +1,34 @@
+Pod::Spec.new do |spec|
+  spec.name = 'GLog'
+  spec.version = '0.3.4'
+  spec.license = { :type => 'Google', :file => 'COPYING' }
+  spec.homepage = 'https://github.com/google/glog'
+  spec.summary = 'Google logging module'
+  spec.authors = 'Google'
+
+  spec.prepare_command = <<-CMD
+    echo '#!/bin/sh' > ./ios-cc.sh
+    echo 'exec "$(xcrun -find -sdk iphoneos cc)" -arch armv7 -isysroot "$(xcrun -sdk iphoneos --show-sdk-path)" "$@"' >> ./ios-cc.sh
+    chmod 755 ./ios-cc.sh
+    CC="`pwd`"/ios-cc.sh CXX="`pwd`"/ios-cc.sh ./configure --host arm-apple-darwin
+    CMD
+
+  spec.source = { :git => 'https://github.com/google/glog.git',
+                  :tag => "v#{spec.version}" }
+  spec.module_name = 'glog'
+  spec.source_files = 'src/**/*.h',
+                      'src/demangle.cc',
+                      'src/logging.cc',
+                      'src/raw_logging.cc',
+                      'src/signalhandler.cc',
+                      'src/symbolize.cc',
+                      'src/utilities.cc',
+                      'src/vlog_is_on.cc'
+  spec.public_header_files = 'src/glog/*.h'
+  spec.pod_target_xcconfig = { "USE_HEADERMAP" => "NO",
+                               "HEADER_SEARCH_PATHS" => "$(PODS_TARGET_SRCROOT)/src" }
+
+  # Pinning to the same version as React.podspec.
+  spec.platform = :ios, '8.0'
+
+end