Migrate transformers utils to utils package and expand functionality

Author: markurtz

src/speculators/convert/eagle/utils.py

@@ -1,10 +1,28 @@
 from .auto_importer import AutoImporterMixin
 from .pydantic_utils import PydanticClassRegistryMixin, ReloadableBaseModel
 from .registry import RegistryMixin
+from .transformers_utils import (
+    check_download_model_checkpoint,
+    check_download_model_config,
+    download_model_checkpoint_from_hub,
+    load_model_checkpoint_config_dict,
+    load_model_checkpoint_index_weight_files,
+    load_model_checkpoint_state_dict,
+    load_model_checkpoint_weight_files,
+    load_model_config,
+)
 
 __all__ = [
     "AutoImporterMixin",
     "PydanticClassRegistryMixin",
     "RegistryMixin",
     "ReloadableBaseModel",
+    "check_download_model_checkpoint",
+    "check_download_model_config",
+    "download_model_checkpoint_from_hub",
+    "load_model_checkpoint_config_dict",
+    "load_model_checkpoint_index_weight_files",
+    "load_model_checkpoint_state_dict",
+    "load_model_checkpoint_weight_files",
+    "load_model_config",
 ]