Use mm/s

[gabryelreyes]

Use mm/s instead of steps/s
Allows for the counterpart to use SI units instead of steps.
Counterpart of BlueAndi/RadonUlzer#146

Closes #114

[nhjschulz]

Would have been a good oportunity to introduce a user type for speed, something like typedef uint32_t velocity_t.

[BlueAndi]

The change has influence on the PIDs, I only saw one change there. What about calculations at all?

[gabryelreyes]

I tested the simulation and this was the only change required for the stability of the platoon

[BlueAndi]

I tested the simulation and this was the only change required for the stability of the platoon

A stability issue means there is a bug or bad parameters. There is no influence just by unit change on stability. ;-)
Anyway you can merge, but the stability issue might still be included and just damped.

[gabryelreyes]

Not even an issue when the maximum value possible changes? Then you may be right, and there may still be an issue

[BlueAndi]

Not even an issue when the maximum value possible changes?

No, there is always a max. speed by electronic + mechanic. Every higher value is limited on RU side. Seems for me the problem is on DCS side, that it assumes the higher speed will work, but it doesn't.