with an exposed interface.
Not checking for a specific sentinel error reduces coupling between packages
and allows adding context like the resource ID and resource type.
* Moving query attributes from the query object to the pack-query relationship
* some additional tests
* http request parsing test
* QueryOptions in new test_util code
* initial scaffolding of new request structures
* service and datastore
* test outline
* l2 merge conflict scrub
* service tests for scheduled query service
* service and datastore tests
* most endpoints and transports
* order of values are not deterministic with inmem
* transport tests
* rename PackQuery to ScheduledQuery
* removing existing implementation of adding queries to packs
* accounting for the new argument to NewQuery
* fix alignment in sql query
* removing underscore
* add removed to the datastore
* removed differential from the schema
