Implements robust query mechanism

[abdulazeem-tk4vr]

Implements a robust query mechanism for validator GET requests.

This change introduces a new module that queries multiple validators for the same request, tallies the responses for consensus, and returns the majority-agreed response. This enhances the reliability and accuracy of data retrieval.

Key features include:

• Configurable redundancy and retry mechanism
• Dynamic node selection based on performance
• Consensus-based response verification

The configuration is added to config.json and the Config struct. The mechanism is integrated in http.rs to handle Validator GET requests.