Setup NestJS API.

[naimulcsx]

Tasks

• [x] Add docker-compose.yml
• [x] Setup Prisma
• [x] Setup database module
• [x] Add auth module
  • [x] POST /auth/signin
  • [x] POST /auth/signup
• [x] Add Role Based Access Control (RBAC)
• [x] Add API Docs for authentication
• [x] Enable API Versioning
• [x] Secure HTTP headers with Helmet
• [x] Add users module
  • [x] GET /users
  • [x] POST /users
  • [x] GET /users/me
  • [x] GET /users/{username}
  • [x] PATCH /users/{username}
• [x] Add OJ problem parsers library