Merge and split on Box

[navispatial]

Box merge(Box other)

• Returns a minimum bounding box containing both this and other

Iterable<Box> splitUnambiguously()

• Returns unambiguous bounding boxes whose merged area equals with this bounding box.
• Normally this is simply returned as an only item in an iterable. However for geographic coordinates bounding boxes spanning the antimeridian could return two boxes located on both sides of the antimeridian (this logic is handled by GeoBox).

Special case on geographic bounding boxes are handled by #185.

[navispatial]

Implemented in geobase 1.0.0.