ggml : full ALiBi support (#7192)
* ggml : full ALiBi support
* ggml : update ggml_soft_max_ext() CUDA, SYCL
* ggml : ggml_flash_attn_ext() support ALiBi (CPU)
* ggml : ggml_flash_attn_ext() support ALiBi (Metal)
* ggml : fix warning
* ggml : ggml_flash_attn_ext() support ALiBi (CUDA)
ggml-ci
* ggml : fix assert message
* vulkan : add dev notes
* ggml : require mask when using ALiBi
ggml-ci
* convert : fix convert for refact models
