Adapt to embedded-hal-1.0.0-alpha.1

[eldruin]

Here the adaptions necessary for embedded-hal 1.0.0-alpha.1.

[dbrgn]

Thanks! I think requiring Rust >=1.34 would be fine, what do you think?

[eldruin]

Good point. The MSRV in embedded-hal had to be raised to Rust 1.35 due to an issue with associated constants in the ADC trait. So far that will be the MSRV of embedded-hal 1.0.0 so actually I would say the MSRV of this crate should be raised to 1.35 as well.
I will revert the commit adding void, update the MSRV and bump the minor version of this crate in this branch.

[dbrgn]

Makes sense!

[eldruin]

Done :)

[ryankurte]

Looks good! Blocked on rust-embedded/embedded-hal#177 (which I've been mentioning everywhere useful so we have a list of pending PRs when we ship v1.0.0)

[dbrgn]

@niclashoyer updated your branch to the latest alpha, so let's continue this discussion in #39.