Create separate tables for group SCIM

Aboobacker MKrequested to merge
tachyons_split_scim_db into master

What does this MR do and why?

Create separate tables for group SCIM

Create separate tables for group SCIM to make sharding and cell locality easier to manage.

This MR contains database changes extracted from !170565 (merged)

Edited by Aboobacker MK

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