Add LiquidSmooth Statusbar Settings

Included just network traffic meter for now
Credit to mahdi-rom, Haus1, htchoi1995 for the network traffic code

Change-Id: I70b737552981f35b551c2b506f1544d0be431edb

Conflicts:
	res/values/liquid_arrays.xml
	res/values/liquid_strings.xml
	res/xml/liquid_main_settings.xml