Created a function for embeddings options

[tedcochran]

Chroma was not creating its vector database because embeddings were not explicitly set in the ingest.py or run_localGPT.py files. This creates a function get_embeddings() for that purpose.

[asegun-cod]

compute_device variable is missing. Also it's better you define get_embeddings outside main()

[PromtEngineer]

@asegun-cod good catch, it was an oversight from my end as well :) Moved it to utils.py and fixed the compute_device parameter. Just needs to be device_type.