add the new controller and routes to the methods

[geetha-1z]

PR Checklist

Please check if your PR fulfills the following requirements:

• The title follows our guidelines
• Tests for the changes have been added (for bug fixes/features), and they use let helpers and before blocks.
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PR Type

What kind of change does this PR introduce?:

• Bugfix
• Feature (requires Feature flag)
• Data fix, Migration, or Report (inert code, no impact until run)
• Refactoring (no functional changes, no API changes)
• Build related changes
• CI related changes
• Dependency updates (e.g., add a new gem or update to a version)
• Release (Prepares code for a release, e.g., version bumps, changelog updates, tagging, deployment scripts)

What is the ticket # detailing the issue?

Ticket:
https://app.clickup.com/t/868hq83gj

A brief description of the changes:

Current behavior:
There is no controller and routes present for the new requirement of ridp-rba implementation.
New behavior:
Creating a skeleton and a base structure for the controller and routes as a start to the ongoing implementation.

Feature Flag

For all new feature development, a feature flag is required to control the exposure of the feature to our end users. A feature flag needs a corresponding environment variable to initialize the state of the flag. Please share the name of the environment variable below that would enable/disable the feature and indicate which client(s) it applies to.

Variable name:

• DC
• ME

Additional Context

Include any additional context that may be relevant to the peer review process.