Support for 4d data and several other fixes

What's Changed

• Small fix by @oeway in #31
• Hpa dataset by @constantinpape in #32
• fix input for ilastik predictor by @JonasHell in #33
• add boolean to set ilastik threads to 0 by @JonasHell in #34
• add plt functionality for check_loader by @JonasHell in #35
• fix n_sample bug in rawDataset and plt bug in check_loader by @JonasHell in #36
• fix bugs for pseudo-label learning by @JonasHell in #37
• Update for new build_model signature by @constantinpape in #38
• Implement shallow2deep for multi-class predictions by @constantinpape in #39
• Enable partial deserialization of raw and segmentation dataset by @constantinpape in #40
• Enable prediction with channels and add test for it by @constantinpape in #41
• Support 4d data and labels with channels in segmentation dataset by @constantinpape in #42

New Contributors

• @oeway made their first contribution in #31
• @JonasHell made their first contribution in #33

Full Changelog: 0.2.0...0.3.0