feat(matplotlib): implement chernoff-basic (#6827)

## Implementation: `chernoff-basic` - python/matplotlib

Implements the **python/matplotlib** version of `chernoff-basic`.

**File:** `plots/chernoff-basic/implementations/python/matplotlib.py`

**Parent Issue:** #3003

---
:robot: *[impl-generate
workflow](https://github.com/MarkusNeusinger/anyplot/actions/runs/25924728037)*

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Markus Neusinger <2921697+MarkusNeusinger@users.noreply.github.com>

Author: github-actions[bot]

plots/chernoff-basic/implementations/python/matplotlib.py

@@ -1,7 +1,7 @@
-""" pyplots.ai
+""" anyplot.ai
 chernoff-basic: Chernoff Faces for Multivariate Data
-Library: matplotlib 3.10.8 | Python 3.13.11
-Quality: 91/100 | Created: 2025-12-31
+Library: matplotlib 3.10.9 | Python 3.13.13
+Quality: 88/100 | Updated: 2026-05-15
 """
 
 import matplotlib.patches as patches