* Update BSP README's to use current version number
* Update ws2812-pio and i2c-pio to release 0.3.0
* Bump patch number for BSPs so we can push with correct docs
* Update changelog, readme and version number for HAL 0.5.0 release
* Bump HAL version in BSP deps
* Point ws2812-pio and i2c-pio-rs at hal_0.5.0 branches
* Update changelog with latest commits and release date