[LLMC] Add MXFP8 support in compressed-tensor and llm-compressor

[thuang6]

Done:

• CT: Add MXFP8 Support vllm-project/compressed-tensors#630
• LLMC Example: Add MXFP8 Example vllm-project/llm-compressor#2487

[yiliu30]

• CT: Add MXFP8 Support vllm-project/compressed-tensors#630
• LLMC Example: Add MXFP8 Example vllm-project/llm-compressor#2487