call the simulated imu_gyro_value for device

[ShahramKhorshidi]

Call the simulated value of imu_gyro from PinBulletWrapper for device

Tested in simulation with ekf class to estimate the base states from noisy imu_readings

I fulfilled the following requirements

• All new code is formatted according to our style guide (for C++ run clang-format, for Python, run flake8 and fix all warnings).
• All new functions/classes are documented and existing documentation is updated according to changes.
• No commented code from testing/debugging is kept (unless there is a good reason to keep it).

[MaximilienNaveau]

This should be better no?

[MaximilienNaveau]

@jviereck do you confirm?