CEP-44: Kafka integration for Cassandra CDC using Sidecar

This is the initial commit for CEP-44 to introduce a standalone CDC module into the Analytics project. This module provides the foundation for CDC in the Apache Cassandra Sidecar.
    
    This module provides:
    - a standalone Cdc class as the entrypoint for initializing CDC.
    - pluggable interfaces for: listing and reading commit log segments for a token range, persisting and reading CDC state, providing the Cassandra table schema, optionally reading values from Cassandra.
    - read and deserialize commit log mutations.
    - reconcile and de-duplicate mutations across replicas.
    - serialize CDC state into a binary object for persistence.
    - a layer for converting Cassandra mutations into a standard consumable format.