Implementing product CRUD operations for product management

## Feature Request

### Note:
Pull the project and do a docker compose up -d to spin up a new mysql database instance and also a frontend UI phpmyadmin. The product service will be using a mysql database

### Description

this service will be used to provide services involved in creating, updating,deleting as well as entire management of product information in the dashboard by the platform administrators.

### CRUD Operation

Create, Read, Update, Delete.

### Additional Details

Please follow best practices as sonarqube will be use in the CI pipeline to check code quality and check unit tests fail rate.

## Service Implementation

### Service Name

ProductService

### Service Requirements

Begin by implementing all default CRUD operation endpoints

## Controller Implementation

### Controller Name

ProductController.

### Endpoint Details

Begin by implementing all default CRUD operation endpoints

### Request/Response Details

It should properly use a request and response mechanism to perform its operations

## Checklist

- [ ] The service implementation follows best practices and is well-organized.
- [ ] The controller follows RESTful conventions.
- [ ] Unit tests are included for both service and controller using Junit5 and mockito.
- [ ] Proper error handling and status codes are implemented.