Create ReplicaRepairGroup Class for Grouping Replicas and Token Ranges

[VictorCavichioli]

Story Description: A new class, ReplicaRepairGroup, will be created to represent a group of replicas (nodes) and token ranges (vnodes) that need to be repaired together in a Cassandra cluster. This class will encapsulate important information such as the set of replicas, their token ranges, and the last time the repair was completed for this group. The class will provide functionality for iterating over token ranges, retrieving replica nodes, and getting datacenter information for the associated nodes.

Key Responsibilities:

1. Group Repair Logic: Encapsulate the concept of a repair group, which contains both the replicas (nodes) involved in the repair and the token ranges that should be repaired together.
2. Data Management: Store the last time the repair was completed, allowing the system to manage and track repair operations more effectively.
3. Iteration and Information Retrieval: Provide methods to retrieve replica nodes, datacenters, and allow iteration over token ranges.

Acceptance Criteria:

Test Coverage: Unit tests are provided to validate the creation of a ReplicaRepairGroup and the functionality of the methods (e.g., retrieving replicas, iterating over token ranges).

Definition of Done:

1. The ReplicaRepairGroup class is implemented and added to the relevant module.
2. The class is immutable, ensuring that no changes can be made to the set of replicas or token ranges after the object is created.
3. Unit tests validate the correctness of the class’s functionality, including replica and token range retrieval, datacenter extraction, and iteration over token ranges.
4. The class integrates with any existing repair or replication logic, grouping token ranges and replicas for efficient repair operations.
5. Code review and static code analysis are completed with no critical issues or warnings.
6. The project builds successfully, and all tests pass.

Notes:

This class will play a crucial role in managing repair tasks in a distributed system by organizing nodes and their corresponding token ranges into repairable groups.

Related to #652