bounding boxes do not follow GeoJson spec

[jillesvangurp]

GeoJson specifies a different order of the doubles that go in a bounding box array than what is used in this library. This is obviously wrong and somewhat inconsistent.
The fix should be fairlyb straightforward with the port to Kotlin but will require updating a few of the algorithms that use bounding boxes as well.

[jillesvangurp]

Finally fixed this. This may break some stuff if you were depending on the old order. Fixing all the tests took me quite a bit of time as bboxes are essential for several of the algorithms in this library.