gguf merge mergekit lazymergekit BAAI/Infinity-Instruct-7M-Gen-Llama3_1-8B llama-cpp gguf-my-repo base_model:AELLM/llama-3.1-swallow-gen-8b-v0.1 base_model:quantized:AELLM/llama-3.1-swallow-gen-8b-v0.1 region:us