FIX: assign coords (azimuth, elevation) for cfradial, fix exception for AttributeError
FIX: assign coords (azimuth, elevation) for cfradial, fix exception for AttributeError

wradlib/wradlib,heistermann/wradlib,kmuehlbauer/wradlib,kmuehlbauer/wradlib,wradlib/wradlib,heistermann/wradlib