Migrate cli utils to REST API (#239)

* Port a number of commands to use API gateway instead of Pulsar

* Ported tg-invoke-agent to websockets API

* Rename the 2 RAG commands: tg-query-... to tg-invoke-...

trustgraph-cli/scripts/tg-query-document-rag

@@ -1,68 +0,0 @@
-#!/usr/bin/env python3
-
-"""
-Uses the Document RAG service to answer a query
-"""
-
-import argparse
-import os
-from trustgraph.clients.document_rag_client import DocumentRagClient
-
-default_pulsar_host = os.getenv("PULSAR_HOST", 'pulsar://localhost:6650')
-default_user = 'trustgraph'
-default_collection = 'default'
-
-def query(pulsar_host, query, user, collection):
-
-    rag = DocumentRagClient(pulsar_host=pulsar)
-    resp = rag.request(user=user, collection=collection, query=query)
-    print(resp)
-
-def main():
-
-    parser = argparse.ArgumentParser(
-        prog='tg-query-document-rag',
-        description=__doc__,
-    )
-
-    parser.add_argument(
-        '-p', '--pulsar-host',
-        default=default_pulsar_host,
-        help=f'Pulsar host (default: {default_pulsar_host})',
-    )
-
-    parser.add_argument(
-        '-q', '--query',
-        required=True,
-        help=f'Query to execute',
-    )
-
-    parser.add_argument(
-        '-u', '--user',
-        default=default_user,
-        help=f'User ID (default: {default_user})'
-    )
-
-    parser.add_argument(
-        '-c', '--collection',
-        default=default_collection,
-        help=f'Collection ID (default: {default_collection})'
-    )
-
-    args = parser.parse_args()
-
-    try:
-
-        query(
-            pulsar_host=args.pulsar_host,
-            query=args.query,
-            user=args.user,
-            collection=args.collection,
-        )
-
-    except Exception as e:
-
-        print("Exception:", e, flush=True)
-
-main()
-