Dcnum

- enh: add more debugging messages for feature extraction workers

- enh: add more debugging messages for feature extraction workers

- setup: fix bad package discovery

- fix: properly handle empty logs

- fix: make sure values in tables dictionary are one-dimensional

- meta: increment pipeline ID (texture feature computation)
- fix: HDF5Data was not pickable
- fix: HDF5Data did not properly handle tables
- enh: add context manager for CPUSegmenter
- enh: record and log execution time of segmentation and feature extraction
- enh: properly handle border case for computing contour-moments
- enh: properly handle empty images/masks in haralick texture features
- tests: do not use numba's JIT during testing (coverage)