Evolve dbt data diff output

[sungchun12]

resolves #409

Cooking up progress

note: may be different from initial design in referenced issue as development progresses

data-diff --dbt

data-diff --dbt --cloud

Note: Columns added [+1]: {'NEW_COLUMN'} does NOT appear in this output because the API results payload doesn't include that column at all in the diff. This is intended behavior.

Adding a --show sample diff command is NOT worth implementing until the Datafold REST API is updated to return a limited a result set. If implemented today, it would slow down data-diff significantly and consume more memory given 1,000,000 results can be returned by the API with no pre-filtering possible.

Datafold API Needs

• Limit diff results on the Datafold backend
• Get the REST API to return table object dependencies as well as data apps