[MDEP-953] Extend goal to allow configuration of the artifacts from which the dependencies should be copied

**[Roman Huber](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=alerosmile)** opened **[MDEP-953](https://issues.apache.org/jira/browse/MDEP-953?redirect=false)** and commented

Currently the dependencies of the artifact for which Maven is called are copied. I'd be nice if this function is not limited to the current artifact. It should be possible to configure the artifact(s) from which the dependencies should be copied.

The dependency:copy goal accepts a list of artifactItems to be copied. Maybe this goal could be extended to include transitive dependencies of those artifactItems.

The problem with both approaches is that the resolved dependencies of these artifacts must match their versions.

---
No further details from [MDEP-953](https://issues.apache.org/jira/browse/MDEP-953?redirect=false)

Start with the dependency:copy goal and its artifactItems configuration, then review how the current goal selects dependencies for the calling artifact. Define how configured artifacts, their transitive dependencies, and matching resolved versions should behave; done means the goal can copy the intended dependency set without version ambiguity.

Written by the indexing model from the issue text.