[JUNGFRAU] [Correct] Allow selecting ROIs to save 1D projections

Description

FXE project spectra onto JUNGFRAU, so analysis requires selecting the relevant region and taking a 1D projection. They have asked for this to be integrated into calibration, to speed up later processing.

Closes calibration/planning#136

To be determined:

• Input parameters format?
• Output format - including source name (currently like FXE_XAD_JF500K/ROIPROC/JNGFR03:output)
• Should mask be applied before doing the reduction?
• sum, mean (or nanmean)? Or make it another parameter?
• Are 2 ROIs enough?

And probably more, this is just off the top of my head.

How Has This Been Tested?

Running the notebook manually.

Relevant Documents (optional)

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the code style of this project.

Reviewers

@schmidtp @ahmedk