Breakout store queries (#8)

- Break out store queries, so not locked into a Milvus/Cassandra backend
- Break out prompting into a separate module, so that prompts can be tailored to other LLMs
- Jsonnet used to generate docker compose templates
- Version to 0.6.0

tests/test-graph-embeddings

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import pulsar
+from trustgraph.graph_embeddings_client import GraphEmbeddingsClient
+from trustgraph.embeddings_client import EmbeddingsClient
+
+ec = EmbeddingsClient(pulsar_host="pulsar://localhost:6650")
+
+vectors = ec.request("What caused the space shuttle to explode?")
+
+print(vectors)
+
+llm = GraphEmbeddingsClient(pulsar_host="pulsar://localhost:6650")
+
+limit=10
+
+resp = llm.request(vectors, limit)
+
+print("Response...")
+for val in resp:
+    print(val.value)
+