New ServiceSupport dll containing commong logging code.
Inject ServiceSupport into service appdomains.
Wire "Simpleton" example to use logging from ServiceSupport.
Use logging code from CSharpTest.Net.
* Move ServiceProxy into ServiceSupport assembly - less stuff to drag around.
* A service start method can optionally accept ServiceContext with a service name to use in logging.
* Logging uses built-in TraceSource object (still no remoting back to the ServiceManager).