Re #18108 Moved POLARIS back to seperate grouping and offsets

scripts/Diffraction/isis_powder/polaris_routines/polaris_advanced_config.py

 file_names = {
-    "masking_file_name": "VanaPeaks.dat"
+    "masking_file_name": "VanaPeaks.dat",
+    "grouping_file_name": "Master_copy_of_grouping_file_with_essential_masks.cal"
 }
 
 script_params = {

scripts/Diffraction/isis_powder/polaris_routines/polaris_algs.py

@@ -43,9 +43,10 @@ def get_run_details(run_number, inst_settings):
     splined_vanadium_name = _generate_splined_van_name(chopper_on=inst_settings.chopper_on,
                                                        vanadium_run_string=vanadium_runs)
 
+    grouping_full_path = os.path.join(inst_settings.calibration_dir, inst_settings.grouping_file_name)
+
     in_calib_dir = os.path.join(inst_settings.calibration_dir, label)
     calibration_full_path = os.path.join(in_calib_dir, yaml_dict["offset_file_name"])
-    grouping_full_path = os.path.join(in_calib_dir, yaml_dict["offset_file_name"])
     splined_vanadium = os.path.join(in_calib_dir, splined_vanadium_name)
 
     run_details = RunDetails(run_number=run_number)

scripts/Diffraction/isis_powder/polaris_routines/polaris_param_mapping.py

@@ -7,6 +7,7 @@ attr_mapping = [("calibration_directory",       "calibration_dir"),
                 ("config_file",                 "config_file"),
                 ("do_van_normalisation",        "do_van_normalisation"),
                 ("do_absorb_corrections",       "do_absorb_corrections"),
+                ("grouping_file_name",          "grouping_file_name"),
                 ("input_mode",                  "input_mode"),
                 ("masking_file_name",           "masking_file_name"),
                 ("multiple_scattering",         "multiple_scattering"),