StephaneBereux

Fixed two small bugs (as reported in issue #1619 ) in the filtering by metadata for `chroma` databases : - ```langchain.vectorstores.chroma.similarity_search``` takes a ```filter``` input parameter but do not forward...

ChromaDB does not support filtering when using ```similarity_search``` or ```similarity_search_by_vector```

1

Whereas it should be possible to filter by metadata : - ```langchain.vectorstores.chroma.similarity_search``` takes a ```filter``` input parameter but do not forward it to ```langchain.vectorstores.chroma.similarity_search_with_score``` - ```langchain.vectorstores.chroma.similarity_search_by_vector``` don't take this parameter...