Multithreaded component refresh #1231
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This PR causes the
bench_refresh_componentsbenchmark to go from 1,517,282 ns/iter to 142,299 ns/iter when the "multithread" feature is enabled, which it is by default. This massive improvement in speed is because reading from the/sys/class/hwmon/files in Linux can be slow. In particular reading the CPU and chipset temperatures were taking about 60 ms each on my system.