QS network mode: added dynamic SIM slot change for MSIM/Gemini devices
When device is dual SIM, long-press on tile will switch SIM slot to
which tile applies so it is not necessary to dive into the GB tile
specific settings. Current slot is indicated by text located in the
upper right corner of the tile.

Initial SIM slot is taken from QS management/tile specific settings at
boot. SIM slot preference in tile specific settings is a static master
value and is not affected by dynamic changes triggered via tile.
Conflicts:
	res/layout/quick_settings_tile_network_mode.xml
	src/com/ceco/gm2/gravitybox/ModQuickSettings.java
	src/com/ceco/gm2/gravitybox/quicksettings/NetworkModeTile.java