Implement PoC for hot to warm migration - dedicated setup

[neetikasinghal]

Add rest, transport, service layer changes for Tiering.

The end goal of the pr here is to be able to tier indices from hot to warm tier for the dedicated setup.

Reference feature request: #12501
Reference proposal: #13294

[peternied]

[Triage - attendees 1 2 3]
@neetikasinghal Looks like a work item in the storage ecosystem

[linuxpi]

[Storage Triage - attendees 1 2 3 4 5 6 7 8]

@neetikasinghal Thanks for filing this issue, please feel free to submit a pull request and more details on what needs to covered under this issue!