Add pylint exception

Signed-off-by: Beat Buesser <[email protected]>

Author: Beat Buesser

art/attacks/evasion/__init__.py

@@ -1,6 +1,7 @@
 """
 Module providing evasion attacks under a common interface.
 """
+# pylint: disable=C0413
 import importlib
 
 from art.attacks.evasion.adversarial_patch.adversarial_patch import AdversarialPatch