Sketch what a runconf_info might look like

[AbrilRBS]

Changelog: (Feature | Fix | Bugfix): Describe here your pull request
Docs: https://github.com/conan-io/docs/pull/XXXX

• Refer to the issue that supports this Pull Request.
• If the issue has missing info, explain the purpose/use case/pain/need that covers this Pull Request.
• I've read the Contributing guide.
• I've followed the PEP8 style guides for Python code.
• I've opened another PR in the Conan docs repo to the develop branch, documenting this one.