[MNG-7933] configure strict artifact descriptor policy via property

[jaredstehler]

This adds a mechanism for setting a strict artifact descriptor policy, via a boolean config property: aether.artifactDescriptorPolicy.strict.

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[cstamas]

This change is good, but we do have many other related changes pending, so let's merge this one to not get forgotten.

See #1301

[CrazyHZM]

I think we could add some documentation describing these configurations, which would otherwise be scattered all over the place.

[slawekjaranowski]

Is it correct issue number: https://issues.apache.org/jira/browse/MNG-5378 - Use maven-shared-utils in Maven core to replace plexus-utils

[slawekjaranowski]

why not something like maven.... for this property?

[jaredstehler]

i was just following conventions for setting aether / resolver properties from here: https://maven.apache.org/resolver/configuration.html

[cstamas]

@jaredstehler I'd like to propose to have this PR superseded by "onSessionClose" that contains a bunch of maven+resolver improvements, for example this one (contains your change but exposed via CLI): e93bb72

[jaredstehler]

@jaredstehler I'd like to propose to have this PR superseded by "onSessionClose" that contains a bunch of maven+resolver improvements, for example this one (contains your change but exposed via CLI): e93bb72

@cstamas that looks perfect, thanks! PR for reference: #1301

[cstamas]

Is this PR still needed? Please close it out if not.