Fixed import related constructor inheritance problem when creating initial state.
Removed useless inheritance of 'do nothing' state.
Converted state to 'new style' class.
Removed obsolete state.
Created new state to split initial face selection and strip root selection.
Changed face selection state to be root face selection state.
Added missing new state file to fix previous commit 57723579b6e7a149383667dd8c45b7452f889f69.
Adapt object selection state to advance to select root face state.
Add new strip root face to reloading helper.