v3.0 firmware release

[bruno-f-cruz]

• Remove unused registers and rearrange device metadata to accommodate new functionality
• Implement a new register for continuous streaming of sound or frequency generation state
• Fix digital I/O interrupts and configuration
• Stop frequency generation when going to standby mode

[bruno-f-cruz]

there is a common typo across many firmware files that would be nice to fix

[glopesdev]

Minor comments, otherwise looks good. The PR is still marked as draft, I guess one important thing we need to discuss before broad deployment is how to deal with firmware updates in cases of multi-microcontroller devices.

Would be nice if it is possible to have a uniform update procedure using the existing bootloader protocol, but maybe let us discuss this in a separate issue / PR.

[CLAassistant]

All committers have signed the CLA.

[glopesdev]

I reviewed the device.yml and have some questions / suggestions that would be nice to review together. It might impact firmware naming a little bit, but hopefully not too hard to replace.

[glopesdev]

@filcarv @artursilva0 @bruno-f-cruz A reminder that another thing we need to do before merging is regenerate the interface. We might end up merging #24 first so we are able to check this automatically for every PR from now on.

P.S.: We also probably want to rebase this branch first so we make sure to use the latest version of the generators.