feat: add a tflite::hexdump() for printing raw memory #4558

Job	Run time
no-labels	1s
ci-ready-to-merge	2s
ci-run	1s
ci-run-full	1s
call-hexagon / Hexagon Build Test (presubmit)	8m 38s
call-ci / Bazel (presubmit)	16m 3s
call-check-tflite-files / Check PR Modifies TfLite Files	36s
call-ci / Bazel msan (presubmit)	13m 34s
call-ci / Bazel TFLite Tools (presubmit)	1m 44s
call-ci / Bazel asan (presubmit)	13m 30s
call-ci / Cortex-M Bluepill No Release (presubmit)	8m 28s
call-ci / Cortex-M Bluepill Release (presubmit)	7m 11s
call-ci / Code Style (presubmit)	1m 17s
call-ci / Cortex-M Bluepill Renode (presubmit)	4m 12s
call-ci / Cortex-M QEMU Unit Tests (presubmit)	7m 3s
call-ci / Project Generation (presubmit)	9m 48s
call-ci / Makefile x86 Default (presubmit)	6m 53s
call-ci / Makefile x86 Out Of Tree (presubmit)	3m 23s
call-ci / Makefile x86 Release (presubmit)	11m 42s
call-ci / Makefile x86 No TFLite Static Memory (presubmit)	5m 50s
call-xtensa-presubmit / Hifi3z Unit Tests (presubmit)	23m 7s
call-xtensa-presubmit / Vision P6 Build (presubmit)	11m 35s
call-xtensa-presubmit / Hifi5 Unit Tests (presubmit)	19m 25s
PR has Bug	1s
	2h 54m 5s

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