title: Serilog MSSqlServer sink does not work when using ILogger interface
body: <p>I am using Serilog MSSqlServer sink and have got it to write to database with
  the built in static Log.Logger.  However, when I cast it to using ILogger logger
  and use the interface instance logger to log, it no longer writes to database.
  I read somewhere I would need to dispose this interface instance to write to database.
  Is there an equivalent of Log.CloseAndFlush() for the interface instance?</p>
  <p>The reason I am using ILogger and not Log.Logger is because I keep several ILogger instances at the same time writting to different tables.</p>