ArtemisTestResource available

[lordofthejars]

Description
Artemis integration test has an ArtemisTestResource https://github.com/quarkusio/quarkus/pull/2930/files#diff-76fa3fe6358cacc251f9cb4d29ae82ac to manage the lifecycle of an embedded Artemis instance for testing purposes.

The problem is that this class is not available for all users, I think that this kind of utilities should be available for any user because the way we test these integrations might be used by any dev.

So I think that this class should be moved to either an artemis-test artifact or in a place that can be used by anyone.

Generally speaking, I think that any util used in our integration tests should not be implemented in the integration tests itself but in a place that could be used by anyone, because at the end our necessities for testing probably are going to be the same for anyone writing test for Quarkus.

[uaihebert]

Hello, I create a PR for this issue. Let me know what should be improved.