Support meta attributes in documentation editor

[alangner]

Describe the feature

dbt allows to add metadata to the model yaml files on the table and column level: https://docs.getdbt.com/reference/resource-configs/meta

It would be nice if the documentation editor supports to set/write these attributes as well.

Describe alternatives you've considered

Editing yaml files manually

Who will benefit?

Everybody who enriched the dbt models with custom metadata

Are you willing to submit PR?

• [ ] Yes I am willing to submit a PR!