Convert Eiger-master files to CBF

[kif]

close #593

[woutdenolf]

Thanks for the quick support! I ran this on one of Matthew's master files and it seems to work. I noticed however that the virtual dataset in the master file only links the first file. eiger2cbf cannot take multiple files right? Just a question. Fixing the master file should not be a problem.

[kif]

IIRC, Dectris's generated master file uses (several) external links rather than one virtual dataset.
That said, taking several input files it rather complicated since the output option should be modified accordingly ...

[woutdenolf]

Ah indeed. It contains an external link to the first file

I can add the missing external links since EigerImage can handle multiple "data*" datasets (sorted by string): https://github.com/kif/fabio/blob/3df93718fcffcd6c35dd41a317453bf9e34dda28/fabio/eigerimage.py#L134.