No support for WCS 1.1.2

[wsidl]

Running WCS service that natively uses 1.1.2 will generate an empty object with no fault or error.

[cehbrecht]

See also #430 which adds support for WCS 2.0.

[olejorgenb]

A workaround is to ask the server for a specific version.

In my case https://wms.geonorge.no/skwms1/wcs.hoyde-dom1_32 used version 1.1.2 as default, but passing in 1.0.1 explicitly worked: wcs.WebCoverageService("https://wms.geonorge.no/skwms1/wcs.hoyde-dom1_32?version=1.0.1")