Add split_molecule

[cbouy]

Adds a function to split a prolif.Molecule into two based on a predicate function Callable[[ResidueId], bool]. This allows running the water-bridge fingerprint analysis without having to generate a separate file that contains only waters

[github-actions]

Type-checking report

No changes in type-hints coverage 🎉

Overview

.
├── prolif
│   ├── [x] __init__.py
│   ├── [x] _version.py
│   ├── [x] datafiles.py
│   ├── [x] exceptions.py
│   ├── [x] fingerprint.py
│   ├── [x] ifp.py
│   ├── interactions
│   │   ├── [x] __init__.py
│   │   ├── [x] base.py
│   │   ├── [x] constants.py
│   │   ├── [x] interactions.py
│   │   ├── [x] utils.py
│   │   └── [x] water_bridge.py
│   ├── [x] molecule.py
│   ├── [x] parallel.py
│   ├── [x] pickling.py
│   ├── plotting
│   │   ├── [x] __init__.py
│   │   ├── [x] barcode.py
│   │   ├── [x] complex3d.py
│   │   ├── network
│   │   │   ├── [x] __init__.py
│   │   │   └── [x] lignetwork.py
│   │   ├── [x] residues.py
│   │   └── [x] utils.py
│   ├── [x] rdkitmol.py
│   ├── [x] residue.py
│   ├── [x] typeshed.py
│   └── [x] utils.py
├── scripts
│   ├── [x] check_types.py
│   └── [x] test_build.py
└── tests
    ├── [x] __init__.py
    ├── [x] conftest.py
    ├── plotting
    │   ├── [x] __init__.py
    │   ├── [x] test_barcode.py
    │   ├── [x] test_complex3d.py
    │   ├── [x] test_network.py
    │   └── [x] test_residues.py
    ├── [x] test_fingerprint.py
    ├── [x] test_ifp.py
    ├── [x] test_interactions.py
    ├── [x] test_molecule.py
    ├── [x] test_pickling.py
    ├── [x] test_residues.py
    └── [x] test_utils.py

Summary: 42/42 files have complete type hints (100.0%)

Remaining errors

Poe => mypy .
Success: no issues found in 42 source files

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.11%. Comparing base (ca93fee) to head (03b60fe).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #293      +/-   ##
==========================================
+ Coverage   95.10%   95.11%   +0.01%     
==========================================
  Files          23       23              
  Lines        1878     1885       +7     
==========================================
+ Hits         1786     1793       +7     
  Misses         92       92              

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