.Net Core Support for K2 DLL

Currently the DLL "SourceCode.Workflow.Client.dll" only support .net framework. It does not fully support .Net Core 6 or later.

Under .Net Core 6 when retrieving worklists with criteria, it throws error "BinaryFormatter serialization and deserialization are disabled within this application. See https://aka.ms/binaryformatter for more information."

The DLL is still use "BinaryFormatter" which will be removed for .Net Core 8 released this year. And Microsoft already set warning sinces .Net Core 5. But the DLL still have no plan to change up to now. Please consider support .Net Core for your DLL. .Net Core Application is trend of application development.