calculate russian post delivery charges based on dbf files from info.russianpost.ru
for now works only for Moscow as sending point can estimate delivery charges for parcel and letterpackage
tarifcalc.calc(request=None, config=None) -> respond
dict( From='101000' #Moscow To='000000' # Postal code where to send Weight=20000 # weight in gramms (20 kg max) Valuation=1000.00 # price of parcel for insurance calculation )