[HUDI-9177] Add Indexer abstraction and refactor metadata table initialization logic

[yihua]

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Change Logs

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Impact

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Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change. If not, put "none".

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the ticket number here and follow the instruction to make changes to the website.

Contributor's checklist

• [ ] Read through contributor's guide
• [ ] Change Logs and Impact were stated clearly
• [ ] Adequate tests were added if applicable
• [ ] CI passed

[danny0405]

@yihua Is the PR ready for review now?

[vinothchandar]

I can shepherd this one. @yihua

[hudi-bot]

CI report:

• 3690cb8aa9d7bc0d8857402e4dc286cce5eb994e UNKNOWN
• a662d4a10abfa1e83d587f26684a59fa49e51cc5 UNKNOWN
• e7b7f4c87cf6714d92a919cf0b701ac8021f96c9 UNKNOWN
• 3cee7e4a5aa38b671648d565516b7360dfd5b214 UNKNOWN
• 6ab44f3ef0c075c50428a9fe74fb0378072bd33c UNKNOWN
• 6432e12725b9b2167e4b0b081b1026684cef42b1 UNKNOWN
• 995ad23deca07cbface27e9bf72a1683ca9c1876 UNKNOWN
• c6bd30b6a54444ba0961b15087bbb2b192b87b76 UNKNOWN
• 20abb4224502081b1ad860e583e4338f69bef80a UNKNOWN
• 295b3fdf7d0d384e6e2e4b20a752e301dfea8446 UNKNOWN
• 0aa2a0ad6ccadd41a1434d695439c8cc6ec60be2 UNKNOWN
• 4d92466ec1808322f6276a329bad55a2a83c63c9 Azure: SUCCESS

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