ComStream might threw NotImplementException when IStream is not a file

[zhuxb711]

Describe the bug and how to reproduce

NotImplementException was threw in ComStream.Close() when IStream is not a file. Better to catch that exception and ignore it silently.

   At System.Runtime.InteropServices.ComTypes.IStream.Commit(Int32 grfCommitFlags)
   AT Vanara.InteropServices.ComStream.Close()

What code is involved

// In my case get IStream from clipboard format: "FileContents".
// I guess NotImplementException should also threw if IStream is not a file 
new ComStream(IStream).Dispose() //Although we should not dispose an object from clipboard 

Expected behavior
Do not threw any exception on dispose, catch all exceptions and ignore them.

[dahall]

Please test with latest build and confirm resolution.