[INS] Use Acc and Gyro calibration validation to calibrate the 1G of the acceleration

[JulioCesarMatias]

INS uses the isImuReady() function to calibrate the 1G of the acceleration. If the Acc is not calibrated, the INS should be inactive (which does not happen when checking the Gyro).

[JulioCesarMatias]

@DzikuVx Can we rename the function from isImuReady() to imuIsHealth() ?

[DzikuVx]

@JulioCesarMatias but this function does not checks health only basic status of IMU. So not sure about renaming

[JulioCesarMatias]

ok, no problem, let's leave it the way it is