[Tiered Caching][Milestone 1] Expose a cache type setting and integrate it with IndicesRequestCache

[sgup432]

Is your feature request related to a problem? Please describe

Tracked as part of #10870

As part of this, we want to expose a cache type setting with onHeap as a start. Tiered option would be added later once desired changes are in.

User can define cache type setting for IndicesRequestCache as a start.

Describe the solution you'd like

Solution being tracked as part of PR.

Related component

Storage:Performance

Describe alternatives you've considered

No response

Additional context

No response

[peternied]

[Triage - attendees 1 2 3]
@sgup432 Thanks for creating this issue; however, it isn't being accepted due to that the purpose and the outcome of this issue isn't clear. Please feel free to re-open after addressing the reason.