Update ios target to 11

Author: ethanshar

ios/Podfile

@@ -1,7 +1,7 @@
 require_relative '../node_modules/react-native/scripts/react_native_pods'
 require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
 
-platform :ios, '10.0'
+platform :ios, '11.0'
 
 target 'rnuilib' do
   pod 'ReactNativeUiLib', :path => "../lib/ReactNativeUiLib.podspec"