[Feature] - Add ChromaDB support for Vector Storage

[ErroneousBosch]

ChromaDB is seeing growing use for vector storage, especially for self-hosted. It would be nice to see an integrated option to use it. It unfortunately only has Python and JS clients: https://docs.trychroma.com/reference/Client

There is a package for PHP for using it already, which could in theory be used already: https://github.com/CodeWithKyrian/chromadb-php

[MaximeThoonsen]

hey @ErroneousBosch,
Good idea ! Do you want to submit a PR?