Merge pull request firebase#1016 from firebase/mc/packaging

fix spm/cocoapods issues

Bump podspec version

Update podspec versions for 12.0.2

Bump podspec version for OAuth

Merge pull request firebase#992 from firebase/mc/release

Bump podspecs for 12.0.0

Merge pull request firebase#978 from firebase/mc/fb

Update Facebook to 11

Bump versions

Bump version

Update minimum iOS version in README (firebase#967)

Since its 7.0.0 release, Firebase requires iOS 10.0+

Merge pull request firebase#959 from firebase/firebase-8

Fix bundle resource loading for dynamic frameworks