Implement M3 (Max) in asitop#74

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hughescr wants to merge 2 commits intotlkh:mainfrom

Commits on Apr 18, 2024

M3 Max power and bandwidth data (for the M3 Max 128GB version anyway - power levels measured on device using powermetrics and maxing out CPU/GPU usage)
hughescr
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Do a better job generically calculating E-core and P-core activity to work on all processors.
hughescr
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