Add plumbing to allow `Wire`, `Serial1`, `SPI1` to map to the 2nd hardware unit for devices where the PCB layout only brings out the 2nd port. Fix the Seeedstudio XAIO pins Fixes #594
Add plumbing to allow `Wire`, `Serial1`, `SPI1` to map to the 2nd hardware unit for devices where the PCB layout only brings out the 2nd port. Fix the Seeedstudio XAIO pins Fixes #594