Store the resource_klass and id in an array for efficiency#1428

lgebhardt merged 1 commit intov0-11-devJSONAPI-Resources/jsonapi-resources:v0-11-devfrom

v0-11-dev-reduce-resource_identity_allocationsJSONAPI-Resources/jsonapi-resources:v0-11-dev-reduce-resource_identity_allocationsCopy head branch name to clipboard