added general POL group with ICAO prefixes for various German police units
replaced police callsigns in stand lists for EDDL (@sergej-singer please check it is assigned correctly here) and EDDS
also added no_gate group as restriction to EDDS jetway positions
added general POL group with ICAO prefixes for various German police units replaced police callsigns in stand lists for EDDL (@sergej-singer please check it is assigned correctly here) and EDDS also added no_gate group as restriction to EDDS jetway positions