Feature/library cli (#363)

* Major Python client API rework, break down API & colossal class

* Complete rest of library API

* Library CLI support

trustgraph-cli/scripts/tg-stop-library-processing

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+
+"""
+"""
+
+import argparse
+import os
+import tabulate
+from trustgraph.api import Api, ConfigKey
+import json
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+default_user = "trustgraph"
+
+def stop_processing(
+        url, user, id
+):
+
+    api = Api(url).library()
+
+    api.stop_processing(user = user, id = id)
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-stop-library-processing',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '-u', '--api-url',
+        default=default_url,
+        help=f'API URL (default: {default_url})',
+    )
+
+    parser.add_argument(
+        '-U', '--user',
+        default=default_user,
+        help=f'User ID (default: {default_user})'
+    )
+
+    parser.add_argument(
+        '--id', '--processing-id',
+        required=True,
+        help=f'Processing ID',
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        stop_processing(
+            url = args.api_url,
+            user = args.user,
+            id = args.id,
+        )
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+main()
+