Add and update AppAuth

Podfile

Podfile.lock

Pods/AppAuth/Source/AppAuth.h

Pods/AppAuth/Source/iOS/OIDAuthState+IOS.h

Pods/AppAuth/Source/iOS/OIDAuthState+IOS.m

Pods/AppAuth/Source/iOS/OIDAuthorizationService+IOS.h

Pods/AppAuth/Source/iOS/OIDAuthorizationService+IOS.m

Pods/AppAuth/Source/iOS/OIDExternalUserAgentCatalyst.h

Pods/AppAuth/Source/iOS/OIDExternalUserAgentCatalyst.m

Pods/AppAuth/Source/iOS/OIDExternalUserAgentIOS.h

Pods/AppAuth/Source/iOS/OIDExternalUserAgentIOS.m

...AppAuth/Source/iOS/OIDExternalUserAgentIOSCustomBrowser.h

...AppAuth/Source/iOS/OIDExternalUserAgentIOSCustomBrowser.m

Pods/Manifest.lock

Pods/Pods.xcodeproj/project.pbxproj

Pods/Target Support Files/AppAuth/AppAuth-umbrella.h

Pods/Target Support Files/AppAuth/AppAuth.xcconfig

Pods/Target Support Files/GTMAppAuth/GTMAppAuth.xcconfig

...ods-enzevalos_iphone/Pods-enzevalos_iphone.debug.xcconfig

...s-enzevalos_iphone/Pods-enzevalos_iphone.release.xcconfig