Qwen-27B-IQ4_KS for ik_llama.cpp, especially for NVIDIA with 16GB VRAM

Hi everyone, I'm presenting a new quantization of the Qwen-27B model, created specifically with 16GB VRAM NVIDIA GPUs in mind. I used quants that, unfortunately, are not yet available in the main upstream llama.cpp. I'm talking about the KS and KSS quants developed by ikawrakow. After many trials, I managed to create a 14.1GB model which, in my testing, delivers results highly comparable to my previous 14.7GB IQ4_XS quantization.