doc: declare board compatibility through a YAML file

[umarcor]

Instead of manually writing the board compatibility table in the docs, this PR uses a YAML file and a Python script:

• Boards are declared in the YAML file, which provides a machine-readable solution for consumers of this repo to query the data.
• The Python script reads the YAML file and generates a restructuredtext table through tabulate.

No content is changed, so the documentation looks exactly the same. This is an internal enhancement related to #105.

[trabucayre]

Awesome!
Thanks for this update!
Applied!