[Misc]] Move processing context to multimodal directory (#25548)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

tests/models/multimodal/processing/test_tensor_schema.py

@@ -18,10 +18,10 @@ from vllm.config import ModelConfig, VllmConfig, set_current_vllm_config
 from vllm.distributed import (cleanup_dist_env_and_memory,
                               init_distributed_environment,
                               initialize_model_parallel)
-from vllm.inputs import InputProcessingContext
 from vllm.model_executor.model_loader.utils import set_default_torch_dtype
 from vllm.multimodal import MULTIMODAL_REGISTRY, BatchedTensorInputs
-from vllm.multimodal.processing import BaseMultiModalProcessor
+from vllm.multimodal.processing import (BaseMultiModalProcessor,
+                                        InputProcessingContext)
 from vllm.multimodal.utils import group_mm_kwargs_by_modality
 from vllm.transformers_utils.tokenizer import cached_tokenizer_from_config
 from vllm.utils import is_list_of