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

add azure OpenAI

Update OpenAI v4 to latest beta and fixed a few bugs

add constructor to index node so it keeps passed-in indexId

add a filter type to exact match filters

Repo maintenance

Also ran some upgrades on npm/pnpm
pnpm install should install the right packages without the
package-lock.json in the docs folder

This reverts commit 8a433013.

Symlinks didn't quite work