Add a way to mark a table as deprecated

[Smjert]

Not the first time this would've been useful, but the need/idea came up again here: https://github.com/osquery/osquery/pull/7651

This is not a full-fledged blueprint but I think it's worth to record the desire:

1. We should be able to mark a table as deprecated as proposed in the PR
2. We should warn in the logs when doing a query against a deprecated table
3. We should add a flag to disable deprecation warnings (but it's off by default)
4. We should show the deprecated tables in the schema for the tables on the osquery website