Add System.IO.Hashing dependency to windowsdesktop transport pack (#1…

…03695)

System.IO.Hashing is a dependency of System.Formats.Nrbf.

Didn't realize that until just now. Continuation of 91f1481

src/libraries/NetCoreAppLibrary.props

@@ -233,6 +233,7 @@
       System.Diagnostics.PerformanceCounter;
       System.DirectoryServices;
       System.Formats.Nrbf;
+      System.IO.Hashing;
       System.IO.Packaging;
       System.Resources.Extensions;
       System.Security.Cryptography.Pkcs;