Function libreloc_client::calc_accuracy_from_last_plocation

pub(crate) fn calc_accuracy_from_last_plocation(
    pl: &Plocation,
    past: SystemTime
) -> Plocation

Estimate rough accuracy from older location based on their age. E.g. if it’s from 1 hour ago the device is likely to be within kms and cannot be on the opposite side of the Earth.