DUNE/Plans: Reading IMU power rate from config. Using inline function to compute energy with power and time.
Plan/Engine: Reading IMU label from config to keep a boolean on whether the IMU is active or not (for fuel estimation purposes).
Plan/Engine: In FuelPrediction, added parcel for IMU consumed energy. Receving whether it's active or not in constructor.
Plan/Engine: Adjust class Plan to changes in FuelPrediction.