Axis order information of coordinate reference systems

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Some references:

• https://epsg.org/home.html
• https://wiki.osgeo.org/wiki/Axis_Order_Confusion
• https://docs.geotools.org/latest/userguide/library/referencing/order.html
• https://docs.geoserver.org/latest/en/user/services/wfs/axis_order.html

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Implemented in pre-release 0.5.0-dev.1 of geobase 0.5.0