Summary:
This diff fixes the broken sample app for xcode 11. Followed the remediation mentioned in the following links
https://github.com/Carthage/Carthage/issues/2825https://twitter.com/krzyzanowskim/status/1151549874653081601?s=21
Remediation:
Adding Dummy swift file and assigning `"LD_VERIFY_BITCODE": "NO"` solves the problem as suggested in the above links
Reviewed By: jknoxville
Differential Revision: D18420954
fbshipit-source-id: e87930790329ffb2bb92c40aa197552efeedecd3
