Use pims (with jpype) instead of python-bioformats and javabridge

[GenevieveBuckley]

We should use pims (source code here) for reading in bioformats images, instead of python-bioformats & javabridge.

There are a bunch of advantages over our current situation, in particular:

• it handles the JavaVM seamlessly in the background without you having to initialize anything or think about it.
• it's more extensible for use cases with other file formats, and images have nicely bundled metadata.

Note: this pull request is (currently) incompatible with the earlier process-images pull request - the syntax for getting metadata & images from pims vs lifio are different, so I'll need to tidy that up.

This is buildable with pyinstaller, and the program runs to completion (see screenshot below). I'm kind of surprised, because I didn't add any extra webhooks for it. I'm ignoring tifffile's warning, since we're not using it for now.

[GenevieveBuckley]

Note that even with a pims build, it appears as if you still need to install the Java legacy SE 6, and the Java Development Kit 10 separately. See issue https://github.com/monashmicroimaging/podocytes/issues/8 for more detailed comment.