Shapeout2

- BREAKING CHANGE: set default viscosity model for Young's modulus
computation to "buyukurganci-2022", because it is more accurate
and also because it is defined for the "0.83% MC-PBS" medium
- BREAKING CHANGE: remove support for machine learning extensions
(.modc files), because they are not used
- fix: remove leading/trailing slashes for DCOR servers
- setup: bump dclab to 0.61.1 (fix basin-based array access, export from
datasets with internal basins, other minor fixes)

- setup: bump dclab to 0.60.0 (internal basin support, export logs)

- setup: bump dclab to 0.59.1 (mapped-basin now fully supported)

- setup: bump dclab to 0.59.0 (improved support for basin features)

- maintenance release

- fix: data export feature selection must default to features_loaded
- enh: only show local features in QuickView Event Feature tab
- enh: show dcnum pipeline identifiers in Analysis view
- enh: add section:key tool tips for analysis view metadata
- enh: added links to docs explaining default export selection
- docs: remove Shape-Out 1 reference
- setup: remove rpy2 from dependencies until 161 is fixed
- setup: migrate from setup.py to pyproject.toml
- setup: bump dclab to 0.58.7 (performance)