Add missing deps for imagej app

[jmetz]

imagej app is missing deps in central requirements file, causes:

Traceback (most recent call last):                                                                                                                                                              
  File "./apps/imagej/run_imagej.py", line 3, in <module>                                                                                           
    import imagej                                                                                                                                                                               
ModuleNotFoundError: No module named 'imagej'

[jmetz]

I can look at this myself, but without knowing which versions you used, I'd simply be using the latest available of each.