Update stopwatch application to
1. Include a scrolling list of all open timers when a user configurable hotkey is pressed
2. Produce a time stamp each time the timer is started and stopped / paused that will be appended to the log file for each date
3. Maintains all the timer functionality of the previous version, including command line switches and key presses (S) to start (P) to Pause and (F) to finish.
4. No writes to the registry or other dependencies. Provide a portable standalone application. (A requirement for .NET is permissible)