Add Blender Dev Container Template information

[katohirosato]

What type of PR is this?

• Add a new dev container collection
• Update to an existing dev container collection
• Documentation/spec update
• Other containers.dev site update (UX, layout, etc)

Related Issues

None

Description

Please add our devcontainer template for blender extension development.

Collection checklist

If your PR contributes a new collection, please utilize this checklist:

• Collection name
• Maintainer name
• Maintainer contact link (i.e. link to a GitHub repo, email)
• Repository URL
• OCI Reference
• I acknowledge that this collection provides new functionality, distinct from the existing collections part of this index.

[abdurriq]

@katohirosato Thank you for your contribution. Please fix the lint error and we can then merge this.

As an aside, I noticed the repo includes the Obfuscate Docker image; I'm curious why this is included?

[katohirosato]

Thank you for reviewing the pull request. I've fixed the YAML formatting issues.
I'm glad you're curious about the repository.
I tried adding the Obfuscate function as a utility feature which is powered by docker build.

[katohirosato]

Thank you for merge our template.