json create

[oladipo123]

hello ,author,After collecting data through my own phone, I want to know how to generate the corresponding JSON file,include - gyro_integration_error - grv_ori_error - ekf_ori_error t_imu = t_tango - tango_reference_time + imu_reference_time + imu_time_offset - imu_reference_time : approx. time alignments (nanoseconds) - tango_reference_time : approx. time alignments (nanoseconds) - imu_time_offset: : fine tuned time alignments (seconds)