llama : add jina v2 base code (#7596)
* feat: add changes to handle jina v2 base code
* fix: do not complicate things
* fix: fix the usage of the code model
* fix: fix comments
* fix: fix linting issues
* fix: remove ollama patches
* style : minor
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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
