Example for calibrating IMU intrinsics

[Yan Ma]

Hey guys,

Just wondering if it's possible to give an actual example of vicalib usage for calibration, for example, IMU intrinsics (scale, axis alignment, etc) on the README file?

[Yan Ma]

Furthermore, an example csv file for accel and gyro will be appreciated.

[Christoffer Heckman]

We don't calibrate IMU intrinsics, only extrinsics; closing this issue.