* Redirection of the parameter files which have the extension (* .par),
including the management of the existence / creation of the necessary folders
[camino3aparam, camino3aparam / requete]
* The files are read / created under the Qgis user profile, ie "C: \ Users \
FIRST NAME \ AppData \ Roaming \ QGIS \ QGIS3 \ profiles \ default \
camino3param"
* The dialog boxes for reading / saving requests point by default to the folder
"C: \ Users \ FIRST NAME \ AppData \ Roaming \ QGIS \ QGIS3 \ profiles \ default
\ camino3param \ requete"
* Add hourglass to mouse cursor during wait times
