Add development container to Bloom-backend

[eleanorreem]

Overview

A development container allows you to use a container as a full-featured development environment. They are an efficient option for contributors to get started. It would be great to provide this as a quick start up option for our community.

Action Items

• Read and follow instructions in this guide
• Create the dev container and write documentation in ReadME.md in a section under local development
• Ensure the dev container works as expected
• Make a PR and tag @kyleecodes or @eleanorreem . They will ensure that the container works on their device

Resources/Instructions

• https://code.visualstudio.com/docs/devcontainers/create-dev-container
• https://containers.dev/#:~:text=It%20can%20be%20used%20to,of%20supporting%20tools%20and%20editors.

[github-actions]

Thank you for your interest in contributing to Chayn! Please carefully read the CONTRIBUTING.md file and the README.md file for guidance. Let us know if you have any questions. Good luck!