* Peripheral ref/sha (#312)
* Add SHA to list of peripherals to be created
* Refactor SHA peripheral to use PeripheralRef
* Update SHA examples to get them building again
* Fix async time drivers
* Fix usb otg
* Fix s3
Co-authored-by: Jesse Braham <jessebraham@users.noreply.github.com>
* Add the peripheral module plus some helper macros in preparation
* peripheral macro
* Add peripheral generation macro
* Fixes after rebase
* Update the signature of Peripherals::take
* syncronise hello world example
* fmt the entire repo
Co-authored-by: Jesse Braham <jesse@beta7.io>