[issue20505] Remove resolution from selectors and granularity from asyncio

[STINNER Victor]

STINNER Victor added the comment:

>> GetQueuedCompletionStatus(1 ms)->None took 0.307 ms (monotonic: 0.000 ms)
> So basically, on Windows, select(1ms) can be non-blocking?

I would not say non-blocking: it's just that select(N milliseconds) waits between N-1 and N milliseconds on Windows when HPET hardware (High Precision Event Timer) is present and enabled. Example:

GetQueuedCompletionStatus(10 ms)->None took 9.971 ms (monotonic: 0.000 ms)

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