[Kernel] Initial Machete W4A8 support + Refactors (#9855)

Signed-off-by: Lucas Wilkinson <lwilkinson@neuralmagic.com>

benchmarks/kernels/graph_machete_bench.py

@@ -20,10 +20,11 @@ if __name__ == "__main__":
     args = parser.parse_args()
 
     with open(args.filename, 'rb') as f:
-        data: List[TMeasurement] = pickle.load(f)
+        data = pickle.load(f)
+        raw_results: List[TMeasurement] = data["results"]
 
     results = defaultdict(lambda: list())
-    for v in data:
+    for v in raw_results:
         result = re.search(r"MKN=\(\d+x(\d+x\d+)\)", v.task_spec.sub_label)
         if result is not None:
             KN = result.group(1)