Cancellation token to AsyncPump (#4)

* Added cancellation token to AsyncPump method

* Async pump with cancellation token

* Cancellation token tests

* LawoTest Project cancellation token and .net 7

* Minor assembly issues

Author: Roog

src/EmberLibConsumer.net/Lawo.EmberPlusSharp/Properties/AssemblyInfo.cs

@@ -8,10 +8,6 @@
 using System.Reflection;
 using System.Runtime.InteropServices;
 
-// General
-//[assembly: AssemblyTitle("Lawo.EmberPlusSharp")]
-[assembly: AssemblyDescription("")]
-
 // CA enforced
 [assembly: CLSCompliant(true)]