Add devcontainer settings

Summary

In order to provide a unified development environment and not require from the contributor to install the necessary dependencies, remote containers would be useful and solve that problem. https://code.visualstudio.com/docs/remote/containers

We can use devcontainer in some editor with Devcontainer CLI https://github.com/devcontainers/cli So, every developer can create same environment with devcontainer

What is the expected behavior?

• Given: devcontainer.json exists
• Given: Visual Studio Code Remote is active
• Given: Contributor trusts the author/repository
• Expect: A prompt should be available to open the working directory inside a container
• Expect: The environment inside the container should include all dependencies we need to work productively
• Expect: The documentation should contain a note