[Misc] Add SPDX-License-Identifier headers to python source files (#12628)

- **Add SPDX license headers to python source files**
- **Check for SPDX headers using pre-commit**

commit 9d7ef44c3cfb72ca4c32e1c677d99259d10d4745
Author: Russell Bryant <rbryant@redhat.com>
Date:   Fri Jan 31 14:18:24 2025 -0500

    Add SPDX license headers to python source files
    
This commit adds SPDX license headers to python source files as
recommended to
the project by the Linux Foundation. These headers provide a concise way
that is
both human and machine readable for communicating license information
for each
source file. It helps avoid any ambiguity about the license of the code
and can
    also be easily used by tools to help manage license compliance.
    
The Linux Foundation runs license scans against the codebase to help
ensure
    we are in compliance with the licenses of the code we use, including
dependencies. Having these headers in place helps that tool do its job.
    
    More information can be found on ...

vllm/lora/ops/triton_ops/utils.py

+# SPDX-License-Identifier: Apache-2.0
+
 import functools
 from typing import Dict, List, Tuple
 

vllm/lora/peft_helper.py

+# SPDX-License-Identifier: Apache-2.0
+
 # Adapted from: https://github.com/huggingface/peft/blob/main/src/peft/tuners/lora/config.py
 
 import json

vllm/lora/punica_wrapper/__init__.py

+# SPDX-License-Identifier: Apache-2.0
+
 from vllm.lora.punica_wrapper.punica_base import PunicaWrapperBase
 from vllm.lora.punica_wrapper.punica_selector import get_punica_wrapper
 

vllm/lora/punica_wrapper/punica_base.py

+# SPDX-License-Identifier: Apache-2.0
 """
 Based on:
 Chen, L., Ye, Z., Wu, Y., Zhuo, D., Ceze, L., & Krishnamurthy, A. (2023). 

vllm/lora/punica_wrapper/punica_cpu.py

+# SPDX-License-Identifier: Apache-2.0
+
 from typing import Callable, Optional, Tuple, Union
 
 import torch

vllm/lora/punica_wrapper/punica_gpu.py

+# SPDX-License-Identifier: Apache-2.0
 """
 Based on:
 Chen, L., Ye, Z., Wu, Y., Zhuo, D., Ceze, L., & Krishnamurthy, A. (2023). 

vllm/lora/punica_wrapper/punica_hpu.py

+# SPDX-License-Identifier: Apache-2.0
+
 from typing import Optional, Tuple, Union, final
 
 import torch

vllm/lora/punica_wrapper/punica_selector.py

+# SPDX-License-Identifier: Apache-2.0
+
 from vllm.logger import init_logger
 from vllm.platforms import current_platform
 from vllm.utils import resolve_obj_by_qualname

vllm/lora/punica_wrapper/utils.py

+# SPDX-License-Identifier: Apache-2.0
+
 from typing import TYPE_CHECKING, List, Optional, Tuple, Union
 
 import torch

vllm/lora/request.py

+# SPDX-License-Identifier: Apache-2.0
+
 import warnings
 from typing import Optional
 

vllm/lora/utils.py

+# SPDX-License-Identifier: Apache-2.0
+
 import os
 import re
 from typing import List, Optional, Set, Tuple, Type, Union

vllm/lora/worker_manager.py

+# SPDX-License-Identifier: Apache-2.0
+
 from contextlib import contextmanager
 from typing import Any, Dict, List, Literal, Optional, Set, Type, Union
 

vllm/model_executor/__init__.py

+# SPDX-License-Identifier: Apache-2.0
+
 from vllm.model_executor.parameter import (BasevLLMParameter,
                                            PackedvLLMParameter)
 from vllm.model_executor.sampling_metadata import (SamplingMetadata,

vllm/model_executor/custom_op.py

+# SPDX-License-Identifier: Apache-2.0
+
 from typing import Dict, Type
 
 import torch.nn as nn

vllm/model_executor/guided_decoding/__init__.py

+# SPDX-License-Identifier: Apache-2.0
+
 from __future__ import annotations
 
 from typing import TYPE_CHECKING

vllm/model_executor/guided_decoding/guided_fields.py

+# SPDX-License-Identifier: Apache-2.0
+
 from dataclasses import dataclass
 from typing import Dict, List, Optional, TypedDict, Union
 

vllm/model_executor/guided_decoding/lm_format_enforcer_decoding.py

+# SPDX-License-Identifier: Apache-2.0
+
 from functools import lru_cache
 from json import loads as json_loads
 from typing import Optional, Union

vllm/model_executor/guided_decoding/outlines_decoding.py

+# SPDX-License-Identifier: Apache-2.0
+
 import asyncio
 import concurrent.futures
 import os

vllm/model_executor/guided_decoding/outlines_logits_processors.py

+# SPDX-License-Identifier: Apache-2.0
+
 # Copyright 2024- the Outlines developers
 # This file is adapted from
 # https://github.com/outlines-dev/outlines/blob/main/outlines/serve/vllm.py

vllm/model_executor/guided_decoding/utils.py

+# SPDX-License-Identifier: Apache-2.0
+
 import re