[REQ] validate licenses are copied if a licence is specified in the source

[sozercan]

What kind of request is this?

Improvement of existing experience

What is your request or suggestion?

Dalec should create licence files in /usr/share/licenses for known licenses from specs (not dependencies)

warning that says:
"source has LICENSE file but is not included in artifacts"

example:
https://oci.dag.dev/layers/mcr.microsoft.com/azurelinux/base/nginx@sha256:f203d7e49ce778f8464f403d2558c5d7162b1b9189657c6b32d4f70a99e0fe83/usr/share/licenses/

Are you willing to submit PRs to contribute to this feature request?

• Yes, I am willing to implement it.

[cpuguy83]

We already support licenses https://azure.github.io/dalec/artifacts#licenses