Add the STRIP_INSTALLED_PRODUCT buld setting to the Pods project, setting it to…

Add the STRIP_INSTALLED_PRODUCT buld setting to the Pods project, setting it to 'NO'. This will prevent Xcode from stripping debug symbols from the Pods libraries while performing an archive build, allowing the main project targets to include pods symbols in generated dSYMs for Archive builds.

lib/cocoapods/installer.rb

@@ -296,6 +296,7 @@ module Pod
         @pods_project.build_configurations.each do |build_configuration|
           build_configuration.build_settings['MACOSX_DEPLOYMENT_TARGET'] = osx_deployment_target.to_s if osx_deployment_target
           build_configuration.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = ios_deployment_target.to_s if ios_deployment_target
+          build_configuration.build_settings['STRIP_INSTALLED_PRODUCT'] = 'NO'
         end
       end
     end