Added data to Ilastik project example and cleaned script

[votti]

• Adds now an example classifier
• Removed example how to change channel number, as this did only work with some ilastik versions
• Commented h5dump for readability

[votti]

TODO: I need to add the data to the 'official' data folder.

[votti]

TODO: include @jwindhager example how to change paths: https://gist.github.com/jwindhager/d07c6b1da9d3b11ec8af852ae0fb0bba

[jwindhager]

TODO: include @jwindhager example how to change paths: https://gist.github.com/jwindhager/d07c6b1da9d3b11ec8af852ae0fb0bba

Also, there should be an option to list the current file paths (if not present already): https://gist.github.com/jwindhager/c0dbdc64d0630115f4b9c44dbc821a43

[nilseling]

@jwindhager not fully sure if this is still needed. But can it be merged?