This sample implements a simple "Echo Console" that illustrates the mechanism by which a caller can directly invoke & communicate with Command-Line applications.
1. Creates two pipes - one for output, the second for output
1. Creates a Pseudo Console attached to the other end of the pipes
1. Creates a child process (an instance of `ping.exe` in this case), attached to the Pseudo Console
1. Creates a thread that reads the input pipe, displaying received text on the screen
