jaeger 1.7.7

✨ Improved

• Add rot_ref_angle option to the FVC command to set the reference rotator angle for fiducial fitting.

🔧 Fixed

• Set the configuration epoch for DitheredConfiguration as the epoch of the parent.
• Use the configuration focal scale in all calls to icrs_from_positioner_dataframe().

🚑 Hotfix

• #205 Added a hotfix for an issue caused when the back-illuminated fibres don't turn on during and FVC loop (cause under investigation). When light is not detected in the FVC image the code will retry up to three times, each time turning the LEDs off and then on again.

⚙️ Engineering

• Add back pyarrow dependency.