title: Common.Logging metadata on specific types of log targets
body: <p>I want to use Common.Logging to perform 2 different functions:</p>
  
  <p>Standard logging (this happened at this time under these circustances)... this goes into a specific table.
  Targeted logging (this workflow component experienced these sorts of events)... this goes into a different table with associated metadata.</p>
  
  <p>Setting up Standard Logging is easy, but I need metadata associated with the second type, (workflow id, step number, that sort of thing).  With NLog, I'd pass that along in a <code>GlobalDiagnosticsContext</code> method; I'm thinking something similar must exist for Common.Logging but I can't see how to capture metadata in Common.Logging and pass the information to the <code>LoggerFactoryAdapter</code> to be rendered.</p>
  
  <p>Is there a mechanism for doing this, or is it unsupported?</p>