Hipsta

- general code revision incl. changes in command-line interface and major documentation updates

- fundamental revision incl. changes in command-line interface

- introduced logging
- full lapy integration
- name change: subfieldDNA --> hippocampal shapetools (briefly: shapetools)
- support for ASHS segmentations
- mandatory `lut` command line argument
- dropped `hsflist` command line argument
- changes in default names for output folders and files

- re-introduced remeshing as a preprocessing step; requires additional python
packages `pyvista` and `pyacvd`. See README.md.
- added sheet selection argument for `mapValues()` function, plus output of
interior and exterior surfaces.
- starting with this version, the sign of the mean curvature has changed to
comply with Freesurfer conventions; what was negative is now positive and
vice versa.

- standalone functionality for `mapValues()` function
- curvature output for interior and exterior surfaces

- direction of `x`, `y`, `z` dimensions for output files in the `thickness`
folder has changed:
- `x` is now from medial to lateral (i.e. Presubiculum to CA3)
- `y` is now from posterior to anterior
- `z` is now from inferior to superior
- curvature and subfield label overlays as additional default outputs in the
`thickness` folder
- introduction of the `mapValues()` function to project volume-based data onto
the hippocampal mid-surface (needs to be run separately)
- introduction of `lapy` dependency
- `hsflist` command line argument is no longer necessary
- changes and improvements in various algorithms and parameters