[swss] Add support for PoE feature

[SerhiyBoikoPLV]

What I did Add support for PoE based on sonic-sairedis support of multiple switches

• Add poeorch daemon to handle APPL_DB changes
• Add poesyncd daemon to handle PoE config
• Add poe config manager to parse PoE-related configs

This PR depends on https://github.com/sonic-net/sonic-swss-common/pull/894

Why I did it

How I verified it Builds and tests using VS builds.

Details if related

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• :white_check_mark: login: SerhiyBoikoPLV / name: Serhiy Boiko (17ff200d6f75cdb8f26f98d0bc6d01b08e9a372a)