Fix #1: Remove duplicate Transform class, import from solver_core

itt_solver/transforms.py

@@ -1,14 +1,5 @@
 import numpy as np
-from .solver_core import tile_transform, fill_enclosed
-
-class Transform:
-    def __init__(self, func, name):
-        self.func = func
-        self.name = name
-    def apply(self, phi):
-        return self.func(phi)
-    def __repr__(self):
-        return f"<Transform {self.name}>"
+from .solver_core import tile_transform, fill_enclosed, Transform
 
 def tile_to_target_shifted(shift=(1,1), tile_factor=3):
     """