Chi2 does not take plane rotation into account

[DavidLP]

Since the planes are now rotated the chi 2 is calculated wrong. The assumption was that the planes are not tilted which is not the case anymore. Also see #34.

This will overestimate the chi2 but should generally not give a chi 2 that is too off. Thus has to me a low priority.

[laborleben]

Similar case:

testbeam_analysis/testbeam_analysis/tools/plot_utils.py

Line 846 in 44eacad

intersection = offset + slope / slope[:, 2, np.newaxis] * (z_positions[actual_dut] - offset[:, 2, np.newaxis]) # intersection track with DUT plane

[DavidLP]

Similar case:

The similar case does not exist anymore. All result function properly calculate the intersections.