[Feature]: Support externalized catalog config resources

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Description

Currently, users need to upload catalog resources like hive-site.xml and keytabs, which would be stored in the AMS home and the database. However, it's cumbersome to maintain 30+ catalogs manually like this. Moreover, it adds to the initiation time of AMS cause a standby/new AMS has to write the resources to the local folders.

We should support externalized resources. For example. AMS catalogs store the hive conf path instead of the content of hive-site.xml. Users using externalized should ensure each AMS instance has access to the resources.

Use case/motivation

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Describe the solution

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Subtasks

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Related issues

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Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct