Fix compiler error when onnxruntime_DEBUG_NODE_INPUTS_OUTPUTS is enabled (#20889)
### Description
The recent [PR for int4
support](https://github.com/microsoft/onnxruntime/pull/20362) breaks
builds with the onnxruntime_DEBUG_NODE_INPUTS_OUTPUTS option enabled.
This PR adds utility functions for debug printing of int4 tensor
statistics and data.
### Motivation and Context
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