Prompt and agent manager, dynamically load configuration from config-svc

- prompt-template takes config from the config-svc, dynamically reloads
  as new config appears.
- agent-react takes config from config-svc, dynamically reloads
- Fixed lack of data in config queue, needed to take the Earliest, not the
  Latest values.
- Changed text-completion and knowledge-query tool to both use 'query'
  as the argument.
- Prompt and agent no longer have command line args to supply
  configuration.

trustgraph-base/trustgraph/base/base_processor.py

@@ -67,6 +67,7 @@ class BaseProcessor:
         self.config_subscriber = self.client.subscribe(
             self.config_push_queue, config_subscriber_id,
             consumer_type=pulsar.ConsumerType.Shared,
+            initial_position=pulsar.InitialPosition.Earliest,
             schema=JsonSchema(ConfigPush),         
         )