Glitches in gound truth uzh_tracking_area_run2_imu.txt

[zerolover]

As someone pointed out before, see https://github.com/hemi86/hiltislamchallenge/issues/3#issuecomment-918826725 The outliers still existed and the RMSE was large... Please fix it, Thanks

[hemi86]

Hi @zerolover I just uploaded a fixed version.