Package LuneOS user interface

Created by: zhuowei

LuneOS is a continuation of webOS, HP's discontinued and open sourced mobile operating system. Currently they are focusing on upgrading the user interface to use modern technologies such as Qt5 and Wayland, which would allow running the LuneOS interface on regular Linux. They provide build instructions for running these UI components outside of their OpenEmbedded-based distribution; those instructions may be useful to get LuneOS's UI running on postmarketOS.