Create the skeleton of the prepayment subproject.

[nstarlike]

This project is for the prepayment service which is composed of checking the prepayment list, the balance, the information and the transactional history of each.

The following list shows you what to do.

1. Create a project through Spring Initializr with the Maven option and Spring Web dependency for now.
2. Write a controller to test if it works.
3. Test the endpoint.

That's it!