Problem/Motivation
jsonapi only has constants left in the .module file
Steps to reproduce
open jsonapi.module
Proposed resolution
Move consts to a new class
Replace calls to the const
Update tests
Remaining tasks
User interface changes
N/A
Introduced terminology
N/A
API changes
The following constants are deprecated
JSONAPI_FILTER_AMONG_ALL
JSONAPI_FILTER_AMONG_PUBLISHED
JSONAPI_FILTER_AMONG_ENABLED
JSONAPI_FILTER_AMONG_OWN
Data model changes
N/A
Release notes snippet
N/A