Summary:
This PR adds Github actions to verify that the Sample Objective-C, Swift and Tutorial app build successfully.
## Changelog
Add Github Actions for building Sample Objective-C, Swift and Tutorial app.
Pull Request resolved: https://github.com/facebook/flipper/pull/1025
Test Plan: Github Action passes successfully.
Reviewed By: jknoxville
Differential Revision: D21098106
Pulled By: priteshrnandgaonkar
fbshipit-source-id: 6edd5a3cba74b5ea843abba366c4ad9dc550cf4e
