Resolve "Connect API endpoints to Database using MySQL"

Description

• CRUD operations for User class using JPA repository

Issue

Issue 57

Feature

• Added CRUD operations for User (get all, get by id, create user, delete user, update user)

Tophatting

Use attached postman collection below: whatoodo.postman_collection.json

Expected current behavior

What should you see or expect when you test this feature?

Changes

Describe the changes you made part of this merge request

Screenshots

Add any screenshots required

Design Patterns

List any design patterns used to accomplish this task

Deviations

Were there any deviations from the original design or architecture plan. If yes, what were they ?

Additional

• Unit test written
• Meets requirements
• Cross-browser tested
• Added/updated documentation as needed
• Camel case style used

Closes #57 (closed)