added possiblity to alter the Coverage Band Details of layers & WCS EO t...

 Hello Geosolutions,

we need to alter the "Coverage Band Details" (coverage > dimensions > coverageDimension tag) in the layer configuration.

Currently this is not possible via the Geoserver Manager. So I went ahead and made a patch (including tests) to the latest Geoserver Manager version to be able to set the Coverage Band Details. I've used the code for setting the coverage > metadataLink tag as a blueprint (I think this was also a community patch).

Furthermore, we also need to set the "Expose this coverage as a Earth Observation Dataset" flag in the layer properties. This is currently also not possible with the Geoserver Manager. However, to be able to set the coverage > metadata > <entry key="wcseo.dataset">false</entry> tag only a small change in the GSResourceEncoder class was necessary.

See for both changes this pull request.

If you have any questions, please do not hesitate to contact me (henry.rotzoll@dlr.de).

Best regards,
Henry