Faster valve reaction

[Pat-I]

The valve control loop could be better
Currently the GPS data goes to OG that calculate the error and send it to the controller.

The controller only have an error to correct until the next one arrive. the height data is already about 100-200ms old when it arrive.

New setup could be:
GPS data goes to the blade controller that reads the altitude before sending the data to OG (max 10hz)
OG send target height to the controller.

Meanwhile the controller adjust the valve output to each new GPS sentence entering. The valve control loop would be the GPS frequency (100 hz max)

This could take full advantage of a simpleRTK3B receiver.

[Pat-I]

v4.0.2 have less latency, there where timer in both OG and ino that introduced significant delay