Build issues iOS on develop branch

[wrobbler]

Currently the development branch doesn't build for iOS
There are multiple causes for this, like the dependencies itself as well as the new buld engine from Xcode 10

There are multiple issues:

• App has to be renamed to "ViroSample" in the package.json

• iOS folder with Podfile is missing in repo

  • add folder, then run sh setup-ide.sh --ios
  • go to ios folder and run pod update and pod install

• The current version of react-native has issues with third-party / firebase

• First build fails due to an error with the glog dependency in /node_modules/react-native/third-party since the third-party folder doesn't exist. After first failed build it should be present but might not show up, because Xcode doesn't recognize it

  • Clean Project in Xcode and build again

• Now there will be an error in demangle.h from third-party, because the included config.h could not be found

  • rm -rf node_modules
  • npm cache verify
  • npm i
  • run node_modules/react-native/scripts/ios-install-third-party.sh
    (* now build again in Xcode to get third-party folder)
  • go to node_modules/react-native/third-party/glog-0.3.4/ and run ./configure
  • clean project and build again

• Next error will be libfishhook.a from RCTWebSocket not found

  • Remove and re-add Binary link in Xcode like suggested here: Xcode 10 libfishhook.a cannot be found  facebook/react-native#19569 (comment)

• Next runner up: Firebase.h not found from RNFirebaseUtil.h

  • close Xcode

I wasn't able to resolve the issue yet.

• Suggested solution doesn't seem to to the trick:
  • go to /ios
    • rm -rf ViroSample.xcworkspace
    • rm Podfile.lock
    • pod install
    • launch Xcode, clean project and build
  • further reading material and possible solution: 'FirebaseAnalytics/FirebaseAnalytics.h' file not found invertase/react-native-firebase#1016 (comment)

[wrobbler]

Latest commit fixes the build issues. Resolved by setting up a clean viro/react-native project and merging with current project.