acq stream: default drift correction period to 10s

One minute was too slow in most cases where drift was needed.

The real fix will be either to have a way to ask the user, or to automagically detect the drift speed.
gui: extend default range for exposure time to 500s

Needed sometimes for the SPARC.

In newer version we have a different setting for the SPARC and the SECOM,
but in the mean time, just extend the range for everyone.