Add MODEL_TO_LIGER_KERNEL_PATCHING_FUNC to minimize dependencies from external code

[JasonZhu1313]

Summary

Add MODEL_TO_LIGER_KERNEL_PATCHING_FUNC to minimize dependencies from external code

huggingface/transformers#32860 this is the PR for integrate liger kernel to HF, to minimize the dependencies, we shall only expose the dict

Testing Done

Tested in huggingface/transformers#32860 this is the PR for integrate liger kernel to HF, to minimize the dependencies

• run make test to ensure correctness
• run make checkstyle to ensure code style
• run make test-convergence to ensure convergence

[ByronHsu]

makes sense to me. let's wait for hf team

[ByronHsu]

duplicated w #42