Prompt refactor (#125)

* Prompt manager integrated and working with 6 tests
* Updated templates to for prompt-template update

tests/test-prompt-question

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+import pulsar
+from trustgraph.clients.prompt_client import PromptClient
+
+p = PromptClient(pulsar_host="pulsar://localhost:6650")
+
+question = """What is the square root of 16?"""
+
+resp = p.request(
+    id="question",
+    terms = {
+        "question": question
+    }
+)
+
+print(resp)
+