Rewrite GROUP undo based on uuids.

This also removes the GROUP/UNGROUP-specific undo actions.

This also fixes a bunch of undo bugs when duplicating
group members, creating pins, etc.

This also fixes some undo bugs when dividing wires etc.

This also fixes some bugs with new sch items not
being created within an entered group.

pcbnew/tools/array_tool.cpp

@@ -127,8 +127,8 @@ void ARRAY_TOOL::onDialogClosed( wxCloseEvent& aEvent )
 
     BOARD_COMMIT commit( editFrame );
 
-    FOOTPRINT* const fp =
-            m_isFootprintEditor ? editFrame->GetBoard()->GetFirstFootprint() : nullptr;
+    FOOTPRINT* const fp = m_isFootprintEditor ? editFrame->GetBoard()->GetFirstFootprint()
+                                              : nullptr;
 
     // Collect a list of pad numbers that will _not_ be counted as "used"
     // when finding the next pad numbers.
@@ -277,7 +277,7 @@ void ARRAY_TOOL::onDialogClosed( wxCloseEvent& aEvent )
 
                     // Don't bother incrementing pads: the footprint won't update until commit,
                     // so we can only do this once
-                    this_item = fp->DuplicateItem( item );
+                    this_item = fp->DuplicateItem( true, &commit, item );
                 }
                 else
                 {
@@ -299,10 +299,12 @@ void ARRAY_TOOL::onDialogClosed( wxCloseEvent& aEvent )
                     case PCB_DIM_ORTHOGONAL_T:
                     case PCB_DIM_LEADER_T:
                     case PCB_TARGET_T:
-                    case PCB_ZONE_T: this_item = item->Duplicate(); break;
+                    case PCB_ZONE_T:
+                        this_item = item->Duplicate( true, &commit );
+                        break;
 
                     case PCB_GROUP_T:
-                        this_item = static_cast<PCB_GROUP*>( item )->DeepDuplicate();
+                        this_item = static_cast<PCB_GROUP*>( item )->DeepDuplicate( true, &commit );
                         break;
 
                     default: