Adding macros support

[Romanananan]

Hi there 👋
First, thank you for creating and supporting dbt-score, it's a great tool and really helps to impose dbt dev standards in a very concise and convenient way.

But currently, there is no option to run a macros validation. I think that macros also must be in order and follow certain standards, as with other parts of dbt project.

In manifest.json macros is presented in the way as other entities; it has fields: 'name', 'resource_type', 'package_name', 'path', 'original_file_path', 'unique_id', 'macro_sql', 'depends_on', 'description', 'meta', 'docs', 'patch_path', 'arguments', 'created_at', 'supported_languages'. Thus, all of it can be validated using dbt-score.

I believe it would be great to be able to validate macros the same way now we validate Models, Sources, Seeds, etc.
The perspective usage can be smth like dbt-score lint --select macros:<my_macro>. Essentially, in the same way as other entities.

What do you think of that?

[jochemvandooren]

Hey, interesting idea @Romanananan! I think it makes sense to also consider macros indeed. I am curious though; what are the kind of checks you would want to run on macros? Anything in mind already?