Need to add CRS elements for WCS and WMS

[alexgleith]

From @SpacemanPaul

Latest merge to OWS master moves the "native_crs" and "native_resolution" elements out of WCS and into the main layer config. (As they will be needed for WMS as well under the new OWS resource management framework.) This may produce warning messages in dev.

Note that both elements are only required if the native CRS and resolution cannot be determined from the product metadata. If you do have layers that need them in config, you can specify them in BOTH positions (i.e. in wcs section AND main layer section) and then it will work with both current master and 1.8.15. (It will throw a warning in master is all). (edited)

[eefaye]

Has this been resolved with the #250 merge? We are currently having to manually export then assign CRSs while using the WCS in QGIS, to circumvent errors.

[alexgleith]

I can't recall.

I'm a bit bothered by our use of 3857 instead of 6933. We should use the second one preferably and be consistent...