clip : refactor clip_init, add tests (#12757)
* refactor clip_init
* fix loading file
* fix style
* test ok
* better test with report
* add missing headers
* clarify
* add KEY_MM_PATCH_MERGE_TYPE
* remove bool has_* pattern
* Apply suggestions from code review
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* Update examples/llava/clip.cpp
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* use ggml_soft_max_ext
* refactor logging system
* add minicpm-v-o 2.6 for testing
* use nullptr everywhere
* fix Yi-VL model
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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
