gui: selection repitition wip
Merge branch 'master' of delmic-server.local:odemis
dataio: correctly group datasets in TIFF

clean up the code both for TIFF and HDF5.
Now, the test cases fail, as it should be...
tiff: correctly separate back fluoresecence acquisitions
make the GUI open correctly fluorescence OME-TIFF

MD_OUT_WL needs to be recorded. For now, the only way to do that easily with multi-band filter is in the
GUI, which know which of the band we actually use.

Special static streams for fluo

Detect data with metadata MD_IN_WL and MD_OUT_WL as fluoresence and use StaticFluoStreams

Handle correctly readonly wavelengths in the stream entries