[Mono-list] Some System.Diagnostics classes coming together...

[John R. Hicks]

Hi all,

	I've implemented a few of the System.Diagnostics classes...most of them are
bare-bones, but should give us a foundation to move forward with a debugging
infrastructure.  TraceListener, TextWriterTraceListener,
DefaultTraceListener are some of the key additions.  Feel free to
improve/comment on what's up there.

Thanks,
John