* introduce a new 'uicfg' registry (storing instances)

* use the relevant new APIs from lgc.registry to manage the new
  registrable uicfg objects

* cw event manager useage is gone; instead thze standard registry
  reloading mechanism is used

* ensure i18n commands still work (devctl)

* introduce dynamic uicfgs use whenever possible (various views), even
  though sometimes the classic 'static' usage remains