TreeBuilder - support #root_options on subclasses (transferred from ManageIQ/manageiq@6d2d14631d7b458b4ec0223de037e89da64a6958)
TreeBuilder - support #root_options on subclasses
(transferred from ManageIQ/manageiq@6d2d14631d7b458b4ec0223de037e89da64a6958)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic