SpiDevice implementations in embedded-hal-bus don't provide a way to use active-high chip select

[gary600]

I am using a SPI display which requires active-high chip select, but all of the SpiDevice implementations don't mention the polarity of their CS pin anywhere. Looking at the implementation, these implementations are all hard-coded to use active-low CS, which won't work for this display. Adding a way of specifying the chip select polarity would make this usable for this case.

[burrbull]

pub struct ExclusiveDevice<BUS, CS, D, const CSHIGH = false> {

???