set normalize_weights to False as in Java impl (#106)

Author: tteofili

src/trustyai/explainers.py

@@ -355,7 +355,7 @@ def __init__(
         seed=0,
         samples=10,
         penalise_sparse_balance=True,
-        normalise_weights=True,
+        normalise_weights=False,
     ):
         """Initialize the :class:`LimeExplainer`.