[Issue #179]: Adds System.Threading.Timer for aggregate change delay.

[Zettersten]

[JeremyTCD]

My bad, when I was looking through your changes I realized that I'd already written debouncing logic:

https://github.com/JeringTech/Javascript.NodeJS/blob/5999180f381cb41405f47eb31015be27dfb7facb/src/NodeJS/Utils/FileWatching/FileWatcherService.cs#L137-L177

We were debouncing, but with a fixed, small debounce time of 1ms.

Would you like to amend your PR to add an option for configuring that duration? Changes to OutOfProcessNodeJSService no longer necessary.

The option name/comments should indicate that we are debouncing, not aggregating changes over a set time period. Name should be something like "DebounceDuration".