validate source:maxspeed=PL:living_street

[mkoniecz]

source:maxspeed=PL:living_street without maxspeed key or with any maxspeed value except 20 can be reported as "mismatch between source:maxspeed and maxspeed, for source:maxspeed=PL:living_street 20 is expected value of maxspeed"

report source:maxspeed=PL:living_street on any other object other than way with highway=living_street: "Living street should be tagged as highway=living_street"

highway=living_street with maxspeed=20, without source:maxspeed=PL:living_street: "For marking source of speed limit 20 as "Strefa zamieszkania" you may use source:maxspeed=PL:living_street"