CorePush 3.0.4

v3.0.4 - Bugfixes with FcmSender authorization and serialization - CorePush.Tester added to make testing easier v3.0.3 - Cancellation tokens added to the interface with CancellationToken.None by default v3.0.2 - Reverted Portable.BouncyCastle so that the lib can work in shared envs (like Azure App Service) - Apple certificate cleanup added - Minor code improvements added v3.0.1 - Removed Portable.BouncyCastle and System.Security.Cryptography.Cng dependency v3.0.0 [Includes breaking changes] - Added ApnSettings and FcmSettings - HttpClient has to be injected for FcmSender and ApnSender - Both ApnSender and FcmSender are not IDisposable anymore as HttpClient is injected and managed outside - ApnSender JWT token expiration is managed according to Apple documentation v2.1.2 - Added IFcmSender and IApnSender interfaces Previous Versions: - Requires .NET Core 3.1 - Target framework changed to netstandard2.1 - Docker/Linux support is added, thanks to @JeroenBer - ApnSender now uses publisher profile instead of certificates - Firebase cloud messaging now is the only option to send Android push notifications