Convert from CM to Omni
Add omni_mione_plus-eng and omni_mione_plus-userdebug to lunch
Add omni_mione_plus.mk for brunch and direct to vendor/omni
Remove duplicate apps and add omni specific ones
Remove extra overlays to fix building
Remove extra code
Revert commit 10c5f97 cause there no 'DUALBOOT' of TWRP