Add zdb package for Database Management

[lucaslopezf]

Summary

This PR introduces a database abstraction layer called zdb. It's designed to simplify database interactions within Golang applications. It's built on top of the GORM library but provides a more straightforward and extensible API.

Table of Contents

1. Features
2. How To Test
3. Dependencies

Features

1. ZDatabase Interface: Defines methods for common database operations such as Find, Create, Delete, Raw, etc.

2. Connector Mechanism: Added a zdbconnector package to manage different database connectors. Initially, we are supporting ClickHouse.

3. Database Configuration: Extracted database configuration logic to a separate package called zdbconfig. It also handles log configuration.

4. Error Handling and Logging: Incorporated the Zap logging library for better debugging and traceability.

5. Retry Mechanism: If the database connection fails, the system will attempt to reconnect based on the settings in zdbconfig.

6. Mocks for Easy Testing: Provides mock implementations for DBConnector and ZDatabase interfaces, making it straightforward to unit test the package components without setting up actual database connections.

How To Test

1. Unit Tests: Run go test inside the zdatabase package.

   go test ./...
   

Dependencies

• GORM: Database operations are delegated to the GORM library.
• Zap: Used for logging.

[lawRathod]

Looks cool, would love to try out testing through mocks. Support for postgres coming soon? 😆

[emmanuelm41]

I really love it too! If we can bring postgres here too, we could use it on zevm backend, and other projects where we still use postgres.