amqp_json_schema: add authn json docs
amqp_json_schema: convert users of wapi_authn to kapi_authn
amqp_json_schema: added api functions, publishers, and associated others
amqp_json_schema: converted kazoo_api to an Erlang application
amqp_json_schema: use local cache for schemas
amqp_json_schema: removed unused function
amqp_json_schema: try kapi_ if wapi_ fails
amqp_json_schema: update formatting
amqp_json_schema: handle alternative validator_fun returns
amqp_json_schema: more lenient boolean checking