Begin port to GPv3 - change GP type

OP_palettes_linker.py

@@ -45,7 +45,7 @@ class GPTB_OT_import_obj_palette(Operator):
 
     def execute(self, context):
         ## get targets
-        selection = [o for o in context.selected_objects if o.type == 'GPENCIL']
+        selection = [o for o in context.selected_objects if o.type == 'GREASEPENCIL']
         if not selection:
             self.report({'ERROR'}, 'Need to have at least one GP object selected in scene')
             return {"CANCELLED"}
@@ -98,7 +98,7 @@ class GPTB_OT_import_obj_palette(Operator):
             return {"CANCELLED"}    
         
         for i in range(len(linked_objs))[::-1]: #  reversed(range(len(l))) / range(len(l))[::-1]
-            if linked_objs[i].type != 'GPENCIL':
+            if linked_objs[i].type != 'GREASEPENCIL':
                 print(f'{linked_objs[i].name} type is "{linked_objs[i].type}"')
                 bpy.data.objects.remove(linked_objs.pop(i))