Helper functions for working with datomic entities.

Transaction results are put in `:result` in the liberator context.

Add multiple endpoints to cascading routes and give them all the same
options

Module for initializing routes created by
sweet-tooth.endpoint.routes.reitit and associng in the reitit router
as the app's :duct/router

This ns contains DEEP FORBIDDEN MAGIC and is maybe a TERRIBLE IDEA

- Module adds a ::router config key, taking route data as an arg
- route data is sprinkled with helpful sweet-tooth goodies
- route data includes refs to handler keys
- handler keys are added to the config
- handler keys are derived from ::unary-handler and ::coll-handler to 
  provide MAGICAL defaults

Allow specifying routes using keywords corresponding to namespaces