chore: import upstream snapshot with attribution

python/mlc_llm/quantization/no_quantization.py

@@ -0,0 +1,15 @@
+"""The no quantization config"""
+
+from dataclasses import dataclass
+
+
+@dataclass
+class NoQuantize:
+    """Configuration for no quantization"""
+
+    name: str
+    kind: str
+    model_dtype: str  # "float16", "float32"
+
+    def __post_init__(self):
+        assert self.kind == "no-quant"