In some cases, add more version information to processing metadata

[gadomski]

While we'd like to think that we're always running code that's been tagged w/ a version, in reality we're sometimes (often?!) running on a unreleased version. It'd be useful to provide a switch to turn on commit SHA version information in

stac-task/stactask/task.py

Line 171 in 6818b9c

item["properties"]["processing:software"] = {cls.name: cls.version}

. E.g. maybe:

{
    "processing:software": {
        "my-awesome-task": "0.1.0 @ abcdef0123456789"
    }
}

[philvarner]

We need the ability to add additional metadata like this in (e.g., which version of a stactools pkg was used), but processing:software isn't the right place for it, since this is primarily for data processing rather than metadata processing. Maybe a "tooling" extension would be a good idea to cover the areas that Processing and ARD don't?

[gadomski]

Yeah, the processing extension has always felt strange for me to indicate the software that made the metadata, so I'd be interested in a tooling extension or something like it.

[philvarner]

though maybe it's a degenerate case of ARD, and we just need to provide guidance on it. Though I think the ARD folks are also abstracting their extension to account for this.