Feature/subpackages (#80)

* Renaming what will become the core package

* Tweaking to get  package build working

* Fix metering merge

* Rename to core directory

* Bump version.  Use namespace searching for packaging trustgraph-core

* Change references to trustgraph-core

* Forming embeddings-hf package

* Reference modules in core package.

* Build both packages to one container, bump version

* Update YAMLs

trustgraph-core/scripts/dump-parquet

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import pyarrow as pa
+import pyarrow.csv as pc
+import pyarrow.parquet as pq
+import pandas as pd
+import sys
+
+df = None
+
+for file in sys.argv[1:]:
+
+    part = pq.read_table(file).to_pandas()
+
+    if df is None:
+        df = part
+    else:
+        df = pd.concat([df, part], ignore_index=True)
+
+if df is not None:
+
+    table = pa.Table.from_pandas(df)
+    pc.write_csv(table, sys.stdout.buffer)
+