* Fix doc examples for peripheral drivers * Add no_run to doc examples so they can be built by CI * Enable building doc examples in CI check workflow
Bring in line with atsamd-hal GPIO v2 Copied as much as possible. Docs lifted mostly as-is. Also add sample BSP for the Feather RP2040 in boards/feather_rp2040 May include a few random fixes from currently futile attempt to get doctests working.