Refacto of the scene cut detection, make it generic and add another algorythm as an option

ui/panels.py

@@ -179,7 +179,6 @@ class VSETB_PT_sequencer(VSETB_main, Panel):
 
         col = layout.column()
         col.operator('vse_toolbox.set_sequencer', text='Set-Up Sequencer', icon='SEQ_SEQUENCER')
-        col.operator('vse_toolbox.auto_split', text='Auto Split Shots')
         col.operator('vse_toolbox.strips_rename', text=f'Rename {channel}', icon='SORTALPHA')
         col.operator('vse_toolbox.set_stamps', text='Set Stamps', icon='COLOR')
         col.operator("vse_toolbox.collect_files", text='Collect Files', icon='PACKAGE')
@@ -456,6 +455,7 @@ class VSETB_MT_main_menu(Menu):
         layout.operator('vse_toolbox.remove_channel', text='Remove Channel', icon='TRIA_DOWN_BAR')
         layout.separator()
         layout.operator('vse_toolbox.merge_shot_strips', text='Merge Shots')
+        layout.operator('vse_toolbox.scene_cut_detection', text='Scene Cut Detection', icon='SCULPTMODE_HLT')
 
 def draw_vse_toolbox_menu(self, context):
     self.layout.menu("VSETB_MT_main_menu")

ui/properties.py

@@ -252,6 +252,7 @@ class ImportShots(PropertyGroup):
 
     #shot_folder_template: StringProperty(
     #    name="Shot Template", default="$PROJECT_ROOT/sequences/sq{sequence}/sh{shot}")
+    clear: BoolProperty(default=True)
 
     video_template : StringProperty(
         name="Video Path", default="//sources/{sequence}_{shot}_{task}.{ext}")