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-remove-library-document

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+
+"""
+Remove a PDF document from the library
+"""
+
+import argparse
+import os
+import uuid
+
+from trustgraph.api import Api
+
+default_url = os.getenv("TRUSTGRAPH_URL", 'http://localhost:8088/')
+default_user = 'trustgraph'
+
+
+def remove_doc(url, user, id):
+
+    api = Api(url).library()
+
+    api.remove_document(user=user, id=id)
+
+def main():
+
+    parser = argparse.ArgumentParser(
+        prog='tg-remove-library-document',
+        description=__doc__,
+    )
+
+    parser.add_argument(
+        '-u', '--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(
+        '--identifier', '--id',
+        required=True,
+        help=f'Document ID'
+    )
+
+    args = parser.parse_args()
+
+    try:
+
+        remove_doc(args.url, args.user, args.identifier)
+
+    except Exception as e:
+
+        print("Exception:", e, flush=True)
+
+main()
+