Allow DSQL queries to run without the need for a query cache

[JyotinderSingh]

Presently, all DSQL queries require a separate KV cache to be maintained for performance concerns. However, this introduces an additional memory overhead.

DiceDB should allow users to make this behavior configurable, where they have an option to not use the cache and save memory at the cost of a performance hit.

This can be implemented once the multi-threaded, shared-nothing implementation is complete.

[raghavbabbar]

could you please assign this to me for future. @JyotinderSingh

[JyotinderSingh]

could you please assign this to me for future. @JyotinderSingh

There is some time before we will start working on this issue, will assign it when we can support it.