feat: Support image uploading via EOS

here's the version to test:

pip install git+ssh://git@gitlab.cern.ch:7999/atlas-itk/sw/db/itkdb.git@feat/imageUploading

to compare how this works, take a call that you've done in the past with a text file, and with an image file

import itkdb
c = itkdb.Client()

data = dict(component='...', title='...', description='...', type='file', url='...')
files = {'data': (filename, open(file, 'rb'), file_type)}
c.post('createComponentAttachment', data=data, files=files)

and just add one more thing (use_eos=True to tell the Client to bypass some uploads to eos)

import itkdb
c = itkdb.Client(use_eos=True)

data = dict(component='...', title='...', description='...', type='file', url='...')
files = {'data': (filename, open(file, 'rb'), file_type)}
c.post('createComponentAttachment', data=data, files=files)

There will be some info printed out (I will move these to debug statements soon). This should return output like:

{
  "dateTime": "2022-03-19T04:53:47.959Z",
  "title": "...",
  "description": "...",
  "filesize": xyz,
  "userIdentity": "XX-YYYY-Z",
  "type": "eos",
  "code": "...",
  "contentType": null,
  "filename": "...",
  "url": "https://eosatlas.cern.ch/eos/atlas/test/itkpd/...",
  "token": "..."
}

Note that right now - large non-image files will not go to EOS. This only bypasses to EOS for image files. (Try it out with use_eos=True for an image attachment and a non-image attachment and see the differences.)