[WIP] [feat] Introduce new remote user store implementation

[JayaShakthi97]

Purpose

Related Issues

• N/A

Related PRs

• N/A

Checklist

• [ ] e2e cypress tests locally verified. (for internal contributers)
• [ ] Manual test round performed and verified.
• [ ] UX/UI review done on the final implementation.
• [ ] Documentation provided. (Add links if there are any)
• [ ] Relevant backend changes deployed and verified
• [ ] Unit tests provided. (Add links if there are any)
• [ ] Integration tests provided. (Add links if there are any)

Security checks

• [ ] Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines
• [ ] Ran FindSecurityBugs plugin and verified report
• [ ] Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 32.02%. Comparing base (f045386) to head (cb09047). Report is 3616 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #7099 +/- ## ========================================== + Coverage 31.79% 32.02% +0.22% ========================================== Files 41 41 Lines 890 893 +3 Branches 204 220 +16 ========================================== + Hits 283 286 +3 + Misses 607 557 -50 - Partials 0 50 +50 ``` | [Flag](https://app.codecov.io/gh/wso2/identity-apps/pull/7099/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2) | Coverage Δ | | |---|---|---| | [@wso2is/core](https://app.codecov.io/gh/wso2/identity-apps/pull/7099/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2) | `32.02% <ø> (+0.22%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2#carryforward-flags-in-the-pull-request-comment) to find out more. [see 15 files with indirect coverage changes](https://app.codecov.io/gh/wso2/identity-apps/pull/7099/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wso2)

[wso2-jenkins-bot]

⚠️ No Changeset found

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go.

If these changes should result in a version bump, you need to add a changeset.

Refer Release Documentation to learn how to add a changeset.