This removes `VIEW3D_OT_select_or_deselect_all`, adding a deselect_all option to the `VIEW3D_OT_select` operator. - Add utility functions to simplify de-selecting all. - Return true from selection functions when they change the selection to avoid redundant updates. - Use arrays of bases when passing objects between selection utility functions since some users require bases. - Fix logical error in box selection that updated all objects after the first hit.