[bitsail] support doris source connector

[DongLiang-0]

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• Title: [BitSail-XYZ][XxxType] Title of the pull request

• Fixes: #XYZ

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Motivation

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Modifications

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Verifying this change

Please pick either of the following options.

• [ ] This change is a trivial rework/code cleanup without any test coverage.

• [ ] This change is already covered by existing tests, such as: (please describe tests, example:)

  • com.bytedance.bitsail.core.EngineTest#testRunEngine

• [ ] This change added tests and can be verified as follows:

  (example:)

  • Added unit tests for parsing of configs
  • Optimized integration tests for recovery after task failure

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a follow-up issue for adding the documentation