add lbgfs.solution.range option
This merge request adds a new option to optimize demixing, as reported here: https://support.astron.nl/confluence/plugins/servlet/share/content/44bc4fb8-75fe-4591-a838-72383739a12e
This merge request adds a new option to optimize demixing, as reported here: https://support.astron.nl/confluence/plugins/servlet/share/content/44bc4fb8-75fe-4591-a838-72383739a12e