Add SPEEDYBEEF405WING target

[ot0tot]

No description provided.

[haslinghuis]

@ot0tot anything needed to add this ?

[ot0tot]

@ot0tot anything needed to add this ?

The major issue is the EXT1 pin is not connected, so there is no way to sync the gyro with the PID loop. I have a FC, but have not been able to test the target yet.
If you have a Wing FC, please feel free to test and provide feedback. If any of the devs have a way to validate the PID loop rate performance, that would be great also.

[SteveCEvans]

The lack of the interrupt isn't a major issue. The consequence is increased jitter and thus poorer filter performance. Also DMA transfers can’t be initiated ahead of the gyro task being called, so there’s a performance hit. We can live without it, but it would certainly be better with.