[Map] Add new helpers: DistanceUnit, DistanceCalculator, CoordinateUtils #2551
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To ease the work on distances while managing maps, this PR introduce some new tools
DistanceUnitenum, that contains the most common distance units and their conversion ratiosDistanceCalculatorInterface, and 3 implementations (most commonly used formulas)DistanceCalculatorfinal service, that defaults to Vincenty formula and Meter unitCoordinateUtilshelper to convert DMS coordinates (48° 7′ 3″ N) in decimal ones (48.1175 N)Also, added
getLatitude()andgetLongitude()onPoint, avoiding the use of toArray()