Release v1.4.0

[m-mohr]

Release v1.4.0 with the changes listed below.

I did all the changes without deep knowledge of R, so feel free to review and let me know if there's anything that could be improved.

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Added

• Support for the OpenID Connect Client Credentials flow
• compute_result, create_job, update_job, create_service and update_service have an additional parameter to inject custom properties into the request (e.g., to set memory or CPU limits)
• Implement the datacube subtype through the new DataCube class (which RasterCube and VectorCube inherit from now)

Changed

• OpenID Connect scopes can be provided as lists

Fixed

• describe_collection and collection_viewer accept string IDs again

[przell]

Hi Matthias,
congrats to the new release.
I have installed the dev version and verified, that

• compute_result() etc. have the additional argument
• That RasterCube and VectorCube exist and inherit from DataCube (formally)
• describe_collection takes strings

To test the new auth method I would need a backend that supports the new method?!

[m-mohr]

@przell Thank you. I think I tested it against the GEE backend with credentials that you could obtain from the Google Cloud API console, but that's pretty advanced. openeo.cloud also supports it, but you'd also need to get specific new credentials from EODC or VITO, I think.

[flahn]

I have fixed some issues that came up during testing against the GEE backend and with some code examples against VITO backend. For the Client Credentials Workflow I had to setup a local KeyCloak instance on my computer and I configured a client to allow authentication with client credentials. As for now the changes LGTM, so I will merge the PR right away. Next step would be the CRAN release.