RC: add nav bar config

Change-Id: I878faba4c7d769550b10abf2cacadce2c51ad140
Signed-off-by: Roman Birg <romanbirg@gmail.com>
[WIP] RC: Load navdrawer items dynamically based on config overlays

* Need to import org.apache.commons.lang.ArrayUtils still

Change-Id: Icdeff6a4836f28a8fc9f3c42979b41921c8147f7
Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>