support layerwise galore

Former-commit-id: d43a4da0947897d0be3f62fad3107754d4c89f2b

src/llmtuner/hparams/finetuning_args.py

@@ -182,6 +182,10 @@ class GaloreArguments:
         default="std",
         metadata={"help": "Type of GaLore projection."},
     )
+    galore_layerwise: bool = field(
+        default=False,
+        metadata={"help": "Whether or not to enable layer-wise update to further save memory."},
+    )
 
 
 @dataclass