Marcel Tiede

Add Invoke method to signal descriptor

1

Add Invoke method to signal descriptor Sample implementation for signals without `SignalArgs`: ```CS public void Emit(TSender sender) { var instance = new Value(sender); var args = Internal.ValueArray2OwnedHandle.Create([instance]); Functions.SignalEmitV(...); } ```

The UTF8-Strings and Filename / Platform strings are currently always converted to C# strings. A user of the library perhaps does not want to display the path to the user...