WGS84 bounding boxes do not cross anti-meridian

[jeanetteclark]

E < W, and E and W both in the range -180 to 180
S < N, and S and N both in the range -90 to 90

[jeanetteclark]

see also: https://github.com/NCEAS/metacatui/blob/main/src/js/models/metadata/eml211/EMLGeoCoverage.js#L368-L446