Adding ingest

apps/cli/executables/pexable/ingest/LICENSE.txt

apps/cli/executables/pexable/ingest/MANIFEST.in

apps/cli/executables/pexable/ingest/README.md

apps/cli/executables/pexable/ingest/README.txt

apps/cli/executables/pexable/ingest/ingest/DBURLUtil.py

apps/cli/executables/pexable/ingest/ingest/FITSUtil.py

apps/cli/executables/pexable/ingest/ingest/IDIFITSUtil.py

...li/executables/pexable/ingest/ingest/IngestionManifest.py

...cli/executables/pexable/ingest/ingest/JSONMetadataUtil.py

apps/cli/executables/pexable/ingest/ingest/NGASUtil.py

...cli/executables/pexable/ingest/ingest/RealFastMetadata.py

apps/cli/executables/pexable/ingest/ingest/UVFITSUtil.py

apps/cli/executables/pexable/ingest/ingest/VLBAFITSUtil.py

apps/cli/executables/pexable/ingest/ingest/__init__.py

apps/cli/executables/pexable/ingest/ingest/_version.py

apps/cli/executables/pexable/ingest/ingest/almautils.py

apps/cli/executables/pexable/ingest/ingest/archive.py

...li/executables/pexable/ingest/ingest/archive_caltables.py

apps/cli/executables/pexable/ingest/ingest/archiveutils.py

apps/cli/executables/pexable/ingest/ingest/commands.py