Add Gemma 4 E4B-it raw weights (safetensors + tokenizer)

Add Gemma 4 26B-A4B MoE GGUF (IQ4_XS) + vision projector

Add Gemma 4 E2B + E4B GGUF quantizations (Q4_K_M, Q5_K_M) + vision projectors

Add Gemma 4 E2B-it raw weights (safetensors + tokenizer)

initial commit