Add embedding mode with arg flag. Currently working (#282)
* working but ugly
* add arg flag, not working on embedding mode
* typo
* Working! Thanks to @nullhook
* make params argument instead of hardcoded boolean. remove useless time check
* start doing the instructions but not finished. This probably doesnt compile
* Embeddings extraction support
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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
