This PR aims to add some cops that were removed earlier due to false positives by adding a warning severity on the offense instead.

Re-Add Solidus/TaxCategoryDeprecated cop

This cop was removed earlier as it was giving a lot of false positives.

We have re-added this cop again but now with a warning offense so that it doesn't raise any errors for this cop but warns the user to have a look at certain places in the code where something might be wrong.

Severity:

• - info
• - refactor
• - convention (default)
• - warning
• - error
• - fatal

Wrong Code

model.tax_category = data

Correct Code

model.tax_categories = [data]

Solidus PR Link: # Replace with link to Solidus PR where the change has been made.

Before submitting the PR make sure the following are checked:

• The PR relates to only one cop with a clear title and description.
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Ran and ensured all tests are passing on a development environment.
• If this is a new cop, added an entry for the cop on /config/default.yml
• Updated Changelog

Issue #53