Bug fix - link builder not working correctly in rails engine
Bug fix - link builder not working correctly in rails engine

When the gem is uses in a rails engine, the path generated by engine_resource_path_name_from_resource would begin with an underscore.  This was because the base_path_name was empty (which is correct)
senid231/jsonapi-resources,jsmestad/jsonapi-resources,cover/jsonapi-resources,harisadam/jsonapi-resources,CheckMateIO/jsonapi-resources,Skeduna/jsonapi-resources,kevintraver/jsonapi-resources,togglepro/jsonapi-resources,iamvery/jsonapi-resources,cerebris/jsonapi-resources,AKHarris/jsonapi-resources,jashank/jsonapi-resources,datapipe/jsonapi-resources,sozuuuuu/jsonapi-resources,danielma/jsonapi-resources,garytaylor/jsonapi-resources,localytics/jsonapi-resources