height and thickness acceptance tests need to work with nougat data class implementation

[JesseSandberg]

• [x] test_if_tcl_outputs_match
• [x] test_if_trajectories_match
• [x] test_if_leaflets_are_distinct
• [x] test_if_avg_heights_thicknesses_match

[JesseSandberg]

Note: np.nanmean doesn't work when used on a Trajectory.frames object.

Testing now passing after commit 69f3d31

[JesseSandberg]

avg thickness tests implemented and passing testing with commit f85306d