Multi Threading Support: Integrate Shard/Worker implementation with EVAL/Store changes

[soumya-codes]

This would be the final step in the Multi Threading Support.

Its advisable to be take up this task after the following tasks are complete:

1. https://github.com/DiceDB/dice/issues/565
2. https://github.com/DiceDB/dice/issues/566
3. https://github.com/DiceDB/dice/issues/567

Integrate EVAL/Store level changes with the Shard implementation. Integrate the EVAL/Store level changes Worker changes in the PR https://github.com/DiceDB/dice/pull/539

Note: We need to ensure that the integration tests are also updated accordingly.

[aashraybhandar1]

Hey @soumya-codes would like to pick this up when the above issues are done. Thank You!

[kaustubhdeokar]

@soumya-codes , please assign this to me

[N3XT14]

@lucifercr07 @soumya-codes . Can I take this up?

I have had other commits in this and other repo with difficulty-level hard.

Thanks