Feature/flow librarian (#361)

* Update librarian to new API

* Implementing new schema with document + processing objects

test-api/test-library-add-doc

@@ -4,20 +4,25 @@ import requests
 import json
 import sys
 import base64
+import time
 
 url = "http://localhost:8088/api/v1/"
 
 ############################################################################
 
-id = "http://trustgraph.ai/doc/12345678"
+id = "http://trustgraph.ai/doc/9fdee98b-b259-40ac-bcb9-8e82ccedeb04"
 
-with open("docs/README.cats") as f:
-    doc = base64.b64encode(f.read().encode("utf-8")).decode("utf-8")
+with open("docs/README.cats", "rb") as f:
+    doc = base64.b64encode(f.read()).decode("utf-8")
 
 input = {
-    "operation": "add",
-    "document": {
+    "operation": "add-document",
+    "document-metadata": {
         "id": id,
+        "time": int(time.time()),
+        "kind": "text/plain",
+        "title": "Mark's cats",
+        "comments": "Test doc taken from the TrustGraph repo",
         "metadata": [
             {
                 "s": {
@@ -46,13 +51,10 @@ input = {
                 },
             },
         ],
-        "document": doc,
-        "kind": "text/plain",
         "user": "trustgraph",
-        "collection": "default",
-        "title": "Mark's cats",
-        "comments": "Test doc taken from the TrustGraph repo",
-    }
+        "tags": ["mark", "cats"],
+    },
+    "content": doc,
 }
 
 resp = requests.post(