add rel license field

[ahenrij]

Add license to links.rel in fields.json to enable license rel links to be visible in stac browser. license is one of the possible rel type defined in this list based the rel specification

[ahenrij]

FYI @fmigneault

[m-mohr]

Thanks, but this won't make it show up in STAC Browser.

[fmigneault]

@m-mohr
What needs to be done to make it visible?

[m-mohr]

It's on a "blacklist" in SB, you could remove it from that list in your deployment. That's the case because it's listed separately in Catalogs.vue based on the license property. Why do you want the link separately? It should show up already, but in a separate place (given you also have a license property). The same applies pretty much in the Item.

[fmigneault]

Because license: other is needed for our case referring to a ECCC datasets (https://eccc-msc.github.io/open-data/licence/readme_en/), the recommended relation type in https://github.com/radiantearth/stac-spec/blob/master/commons/common-metadata.md#licensing is employed.

[m-mohr]

That should already be supported and show up. Do you have an example link?

[m-mohr]

Or the other way around, it works for example here:

https://radiantearth.github.io/stac-browser/#/external/stac.dataspace.copernicus.eu/v1/collections/sentinel-3-sl-1-rbt-ntc

See the License section: