[NTG-context] Units for volts and Ohms

Hi, As I was testing circuitikz, I realized that the following don't work: \unit{1V} \unit{100 kΩ} In phys-dim.lmt, we need to change line 467: v = "volt", to V = "volt", and perhaps add (not sure if lua allows utf variable names) Ω = "ohm", Aditya