feat(flight-visualizer): add basic flight visualizer

[PatrykPaluch]

probably part of #74

Note: lora-cli need to be compiled/run from pbak/lora-cli branch and it requires small changes in code - read flight-visualizer README.md

TODO:

• read stdio
  • bme (temperature, pressure, height)
  • accelerometer (dx, dy, dz, drx, dry, drz, pich, yaw)
  • nmea
• better 3d (+/-)

[wiktorwieclaw]

just use a std::collections::VecDeque (pronounced deck)

if deque.len() == max_len {
    deque.pop_front();
}
deque.push_back(value);

you can wrap it in a CircularBuffer newtype if you want (and reuse VecDeque iterators), but it may be simpler if you simply don't.

Each time I inspected a collection data structure implemented at work I concluded that It was poorly designed and implemented, it introduced a ton of undocumented code that needed maintenance and we simply didn't need it at all. I'd strongly recommend avoiding writing them unless you know you really need them and you know what you are doing. It's really hardy to get those things right.

[PatrykPaluch]

done