New groupByCompass functionality

We've added a new parameter, groupByCompass. Using this parameter always returns the nearest address, but then finds up to four nearby addresses in each compass direction.

Use groupByCompass to return an overview of an area, rather than returning 5 adjacent properties which happen to be the closest.

Initial release of Swiftcomplete Reverse Geocoding

This package allows reverse geocoding in Great Britain - further countries will be available shortly.