* Allow splitting off of gpio drivers
* Extract and correct low level connection bits
* Add Input/OutputSignal::connect_to
* Remove unnecessary public API
* Fix typos
* Remove unused private methods
* Add separate Direct signals that do bypass the GPIO matrix
* Do not disable stage input
* Clean up spi_slave test
* Constrain to static Flex
* Improve docs
* Separate input_enable and open_drain parameters
* Link to the chapter
* Changelog
* Clarify
* Remove configure_for_async
* Add into_async and into_blocking to I2c
* Add into_async and into_blocking to UsbSerialJtag
* Rework LCD_CAM
* Rmt
* RSA
* TWAI
* Uart
* Documentation
* Disable interrupts set on other core
* Move configure into RegisterAccess
* Disable interrupts on the other core
* Use EnumSet in RMT