Teamd unified changes

[vrajeshe]

What I did
new cli has been added which allows user to select TeamD design from unified to legacy design and vice cersa

How I did it
How to verify it
CLI Test:Added Test coverage mode CLI

Previous command output (if the output of a command-line utility has changed)
New command output (if the output of a command-line utility has changed)

[mssonicbld]

/azp run

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[mssonicbld]

/azp run

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[mssonicbld]

/azp run

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[mssonicbld]

/azp run

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[prhoskot]

/azp run

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Commenter does not have sufficient privileges for PR 1186 in repo sonic-net/sonic-swss-common

[mssonicbld]

/azp run

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[prhoskot]

@saiarcot895 These PRs are related to Unified Teamd feature implementation. Could you please help in review and approving it. Thanks!

[mssonicbld]

Hi, there are workflow run(s) waiting for approval, you may be first-time contributor. I will notify maintainers to help approve once PR is approved. Thanks!

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[mssonicbld]

/azp run

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Azure Pipelines successfully started running 1 pipeline(s).

[forrestchu]

LGTM.

[mssonicbld]

Hi @sonic-net/sonic-swss-common-maintainer, this approved PR has workflow run(s) waiting for approval. Please help review. Thanks!

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[mssonicbld]

Hi @sonic-net/sonic-swss-common-maintainer, this approved PR has workflow run(s) waiting for approval. Please help review. Thanks!

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[mssonicbld]

Hi @sonic-net/sonic-swss-common-maintainer, this approved PR has workflow run(s) waiting for approval. Please help review. Thanks!

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[mssonicbld]

Hi @sonic-net/sonic-swss-common-maintainer, this approved PR has workflow run(s) waiting for approval. Please help review. Thanks!

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[qiluo-msft]

This hardcodes TEAMD into an otherwise fully data-driven generator (everything else is derived from confDbYangMap). Works for one alias, but it does not scale and hides the intent.

Could we express it as an alias map instead?

TABLE_ALIASES = {"TEAMD": ["TEAMD_MODE"]}
...
for alias in TABLE_ALIASES.get(key, []):
    f.write('#define CFG_{}_TABLE_NAME CFG_{}_TABLE_NAME\n'.format(alias, key))

Also worth a short comment noting CFG_TEAMD_MODE_TABLE_NAME is a compat alias pointing at the unified TEAMD table, not a separate table. wdyt?