Also update presenter to fix minor bugs found while testing.

On windows, the organisation and application must be specified
explicitly to work in the tests.

For some reason doing this without a type worked fine on my machine, but
not on the CI builders.

The functionality was the same across calibration and focus.

Currently, there is no way to load a CSV file (which is the format
that the full calibration is in) into mantid to be used by the GUI.
Until that is added, the option to select the full calibration has been
hidden from the user.
The functionality is there, so once the loading works for large CSVs the
hide() call can be removed.

The plan for this is to use a separate settings helper to do the work
with QSettings so that multiple areas of the code can access these
functions rather than having it be imported from the model. This keeps
the MVP systems separated from one another.

- Remove repeated searching checks

- Split test into reasonable chunks

- Make rb_num naming consistent

Vanadium output files are now saved to the user directory if an RB
number is specifies so that users can have all of the generated data
from processing.

Focusing now saves as .gss, .nxs, and .dat files.

Now using sample instead of a mix of both of these.