add changesets

Docs work

It gets regenerated on build so removing them prevents thrashing

feat: add CSV loader

remove NodeWithEmbedding and upgrade to OpenAI v4

So they always run on the latest lits release

Fix OpenAIEmbedding Fails to Retrieve Session from Parameters When No…

allow adding of nodes with hash comparisons

Allows our scripts to be run repeatedly with vector store backing and
persistence without throwing an error.

This is rudimentary support which doesn't work if the document has
changed over time.

Also added the insert and delete functions so that documents can be
added manually.

Export storage

Llama2 4bit support