Simplified BESC spindle driver using speed_map #989

Job	Run time
tests (macos-latest, tests)	1m 3s
build (ubuntu-latest, noradio)	2m 1s
build (windows-latest, wifi)	4m 55s
build (macos-latest, noradio)	1m 51s
build (macos-latest, bt)	1m 58s
build (macos-latest, wifi)	2m 13s
build (ubuntu-latest, wifi)	2m 20s
tests (ubuntu-latest, tests)	36s
tests (windows-latest, tests_nosan)	1m 32s
build (windows-latest, noradio)	5m 17s
build (windows-latest, bt)	4m 35s
build (ubuntu-latest, bt)	2m 11s
	30m 32s

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