Add the serverless mode for vineyard runtime and the related doc.

[dashanji]

Ⅰ. Describe what this PR does

As titled.

[fluid-e2e-bot[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[fluid-e2e-bot[bot]]

Hi @dashanji. Thanks for your PR.

I'm waiting for a fluid-cloudnative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[sonarcloud[bot]]

Quality Gate passed

Issues
10 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
27.3% Duplication on New Code

See analysis details on SonarCloud