feat: support M5

[ryo-touch]

Summary

Add Apple M5 support so that smctemp -c / smctemp -g returns valid temperatures on M5 Macs. Without this change, M5 Macs fall through getCPUModel() and always return 0.0.

SMC sensor keys for M5 are taken from exelban/stats Platform.m5Gen and verified against a real M5 MacBook Air (Mac17,3, macOS 26.3.2) via smctemp -l.

Verification

Tested on Apple M5 MacBook Air (Mac17,3, macOS 26.3.2):

• smctemp -c returns ~35℃ at idle, ~46℃ under yes > /dev/null load
• smctemp -g returns ~35℃ at idle, ~40℃ under CPU load
• Builds cleanly with make (no new warnings)

Sensor keys added

• CPU: Tp00, Tp04, Tp08, Tp0C, Tp0G, Tp0K (super cores), Tp0O, Tp0R, Tp0U, Tp0X, Tp0a, Tp0d, Tp0g, Tp0j, Tp0m, Tp0p, Tp0u, Tp0y (performance cores)
• GPU: Tg0U, Tg0X, Tg0d, Tg0g, Tg0j, Tg1Y, Tg1c, Tg1g

Some keys are absent on base M5 silicon, but CalculateAverageTemperature filters out-of-range (10-120℃) readings automatically, so no extra logic is needed.

[ryo-touch]

@narugit Thanks for the great OSS! I've opened this PR to add Apple M5 support — would really appreciate your review when you have time.

M5 対応の PR を出してみたので、お時間あるときにレビューいただけるとうれしいです。よろしくお願いします。

[narugit]

対応ありがとうございます！
細かいですが下記対応をお願いいたします。

[ryo-touch]

@narugit レビューありがとうございます！suggest changesをリンク先確認したうえでコミットさせていただきました！

[narugit]

対応ありがとうございます