llava binding

[tinglou]

1. llava multimodel api
2. ollama local repo access

[tinglou]

Related PR
ggml-org/llama.cpp#6079

[MarcusDunn]

Thanks for the PR, it's well written and I appreciate the tests!

Unfortunately, I do not feel like I can maintain bindings to examples or common (you'll notice there is a rust version of grammar parsing for example).

If we can replace these with Rust, or if llama.cpp moves the required API's to llama.h (as they plan to do for common/sampling.cpp) I would reconsider llava support.