[FEAT]: Integeration with Cohere LLMs and embedders

[3koozy]

What would you like to see?

Command r and other Cohere LLM models using their API and embeder v3 model for embeddings..

[AnsonLai]

I'm going to add my voice to this one as well. Should Cohere's models are pretty impressive and would really work well with Anything LLM's general approach.

[timothycarambat]

Will add this week support for both LLMs and embedders. Rerankers might be a bit more troublesome, but at least those