Sort before comparing unordered lists
Update sorting to be explicit
Update tests to test new Error Spec
Merge branch 'feature/16917' of https://github.com/osu-cass/whats-fresh-api into feature/16917

Conflicts:
	whats_fresh/whats_fresh_api/tests/views/test_product_view.py
	whats_fresh/whats_fresh_api/tests/views/test_vendor_details.py
	whats_fresh/whats_fresh_api/tests/views/test_vendors.py