* Update utils.py to include `_read_mtx`, `_read_h5ad` and `_read_h5`
* Update `method_launcher.py`
* Update `cpdb_statistical_analysis_helper.py` and `cpdb_statistical_analysis_complex_method.py`
* Requirements: drop pandas versions (fix compatibility with python versions); add numpy, h5py and anndata; for now scikit-learn (geosketch dependency); remains fixed at 0.22 until further testing of geosketch v1.2
* Update `requirements.txt` and `win-requirements.txt` and make `setup.py` pickup requirements from requirements.txt
Co-authored-by: @prete