Refactor filter

[schluis]

Why? What?

• Refactor roll_pitch filter in sensor_data_receiver.rs and in orientation_filter.rs

[oleflb]

requires rebase, there are some major changes in the orientation filter.

[rmburg]

Me like.

You could go one step further and write something like this, what do you think?

let is_steady = angular_velocity_sum < *context.calibration_steady_threshold

[schluis]

@rmburg good Idea, done

[rmburg]

I'll approve once you update the other file as well :)

[schluis]

Done