make test to check validity of Settingsfile paths

[initze]

check validity of

PARENT_DIRS = [Path(r'N:\Response\Restricted_Airborne\MACS\Canada\1_MACS_original_images'),
              Path(r'N:\Response\Restricted_Airborne\MACS\Alaska\2019_ThawTrend-Air\raw_data'),
              Path(r'N:\Response\Restricted_Airborne\MACS\2021_Perma-X_Alaska\01_raw_data'),
              Path(r'N:\Response\Restricted_Airborne\MACS\Canada\2023_Perma-X_Canada\1_MACS_original_images')
              ]
              
# imageing projects footprint file
PROJECTS_FILES = [Path(r'N:\Response\Restricted_Airborne\MACS\Canada\2018_MOSES\0_MACS_important_files\1_all_canada_flights_2018_footprints\all_canada_flights_2018_footprints_datasets.shp'),
                  Path(r'N:\Response\Restricted_Airborne\MACS\Alaska\2019_ThawTrend-Air\footprints\ThawTrendAir2019_MACS_footprints_datasets.shp'),
                  Path(r'N:\Response\Restricted_Airborne\MACS\Alaska\2021_Perma-X_Alaska\03_footprints\Perma-X\PermaX2021_MACS_footprints_datasets.shp'),
                  Path(r'N:\Response\Restricted_Airborne\MACS\Canada\2023_Perma-X_Canada\03_footprints\PermaX2023_MACS_footprints_datasets.gpkg')
                 ]