Create devcontainer.json

[hakib1]

Checklist

• [x] I read the Contribution Guidelines
• [x] I signed the CLA and WG Agreements
• [x] I ran, updated and added unit tests as necessary.
• [x] I verified the contribution matches existing coding style.
• [x] I updated the documentation if necessary.

Motivation and Context

Description

[agologan]

We don't currently use Codespaces but you're free to do so in your fork.

Closing