Feature/20211208 add call back and notification3rd#40

Curacao-1 merged 3 commits intomasterjpush/jpush-api-csharp-client:masterfrom

feature/20211208_addCallBackAndNotification3rdjpush/jpush-api-csharp-client:feature/20211208_addCallBackAndNotification3rdCopy head branch name to clipboard