Missing Google.Apis dependency in Google.Apis.Auth (.NET4.5)

[chrisdunelm]

The nuspec for Google.Apis.Auth is missing a dependency on Google.Apis
This is required in NET45 as Auth PlatformServices requires Google.Apis PlatformServices. Not required in .NET Core. Not yet sure about other platforms.

[chrisdunelm]

Fairly sure it's just the one dependency that's missing.