[chassiss][pmon] implement cooling algorithm for chassis

[arlakshm]

Enchance the cooling algorithm to work for chassis

[rlhui]

Hi @arlakshm , wondering what's the priority of this one? And background of this? Thanks.

[kenneth-arista]

Basic cooling algo has been added via 302c32b. More enhancements will be discussed with the community.

[Staphylo]

@arlakshm there's been some development in this area.
I'm refactoring our cooling algorithm so it can gather sensor information from CHASSIS_STATE_DB.
It should be ready in the coming weeks on master and 202305.

[Staphylo]

Changes related to the cooling algorithm have merged in master and 202305.
Here is the PR for 202305 sonic-net/sonic-buildimage#16702
The only thing that cannot be taken into account is the linecard transceivers temperatures since it's not available to the supervisor. Ideally these should be populated into CHASSIS_STATE_DB as well.
Marking this issue as solved.