Adds the ability to retrieve query history

This patch was authored and released by @mcdappdev.

Tracks database query history for a Request or Application (#689).

To use on the Application:

app.fluent.history.start()
app.fluent.history.stop()
app.fluent.history.clear()

Access the history by calling:

app.fluent.history.queries

The same methods/properties exist on Request:

req.fluent.history.start()
req.fluent.history.stop()
req.fluent.history.clear()
req.fluent.history