feat: example use Ory Hydra. Spring Boot 2 (Java 11), Angular, Docker (Docker Compose)

[Chistousov]

Hello Dear Ory Hydra Developers

Please add my project as an example of working with Ory Hydra.
The project was developed using Spring Boot 2 (Java 11), Angular, Docker (Docker Compose).
The project aims to take a broader look at authentication and authorization using OAuth 2.0.
There is no business logic as such here.

Thank you for your great Ory Hydra project.
Ory Hydra helped me implement flexible internal authentication and authorization within the company.

Ready to modify and correct the project!

Related Issue or Design Document

Checklist

• I have read the contributing guidelines and signed the CLA.
• I have referenced an issue containing the design document if my change introduces a new feature.
• I have read the security policy.
• I confirm that this pull request does not address a security vulnerability.
  If this pull request addresses a security vulnerability,
  I confirm that I got approval (please contact security@ory.sh) from the maintainers to push the changes.
• I have added tests that prove my fix is effective or that my feature works.
• I have added the necessary documentation within the code base (if appropriate).

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