Small supporting scripts for APES

The main tool is harvest_series, which allows to process a time series of restart files and produce a corresponding VTK time series file.

To use the peon apes, consider installing the apes-pyenv environment with the complete toolchain for the apes suite.

To install a local development version of the repository use a pip editable install:

python3 -m venv venv
source venv/bin/activate
python -m pip install -e .