title: Span<T> and streams in .NET framework
body: <p>I am working with network buffers and streams, and Span and Memory would fit perfectly in the application requirements. </p>
  
  <p>As per <a href="https://stackoverflow.com/questions/50078640/spant-and-streams">this</a> question, I would like to get a Stream to accept Span as a parameter. I know that is implemented in .NET Core 2.1, but I was wondering if there's a way to get this functionality in .NET Framework as well? (I am using 4.7.1)</p>
  
  <p>Something like:</p>
  
  <pre><code>Span&lt;Byte&gt; buffer = new Span&lt;byte&gt;();
  stream.Read(buffer);
  </code></pre>