Identify catalog metadata management tool options

[deanwampler]

This task is just to determine a list of tools for further consideration. For each candidate, separate issues will be created for evaluating each one appropriately.

The list can be captured here as comments.

For example, see #71, for Unity Catalog as an option.

Some requirements the candidates should be able to meet:

1. Support datasets managed elsewhere, while some datasets might also be managed by the Alliance directly. Hence, provide the ability to manage or just a catalog a dataset.
2. GUI for browsing.
3. Access controls.

[deanwampler]

Possible candidates (with separate issues, if they exist):

• Unity Catalog (Investigate using Databricks-sponsored Unity Catalog for metadata management #71)
• LinkedIn Data Hub (Evaluate LinkedIn Data Hub as a catalog system #76)

[deanwampler]

• Open Metadata (Evaluate Open Metadata for the catalog #78)