Overview

Allow variable and collection from different providers to associate

Remove the same provider validation.

CMR Association

List impacted areas.

Checklist

[x ] I have updated/added unit and integration tests that prove my fix is effective or that my feature works
[ x] New and existing unit and int tests pass locally and remotely with my changes
[ ] I have removed unnecessary/dead code and imports in files I have changed
[ x] I have performed a self-review of my own code
[x ] I have commented my code, particularly in hard-to-understand areas
[ ] I have made corresponding changes to the documentation
[x ] My changes generate no new warnings
[ ] I have cleaned up integration tests by doing one or more of the following:
- de-duped, consolidated, removed dead int tests
- transformed applicable int tests into unit tests
- refactored to reduce number of system state resets by updating fixtures (use-fixtures :each (ingest/reset-fixture {})) to be :once instead of :each