v1.3.6

CounterfactualExplanations v1.3.6

Diff since v1.3.5

Merged pull requests:

• Balancing gradients (#492) (@pat-alt)
• fixed (#498) (@pat-alt)

Closed issues:

• Sort out PROBE (#376)
• Use Gradient Magnitude Matching or Root Scaling (#490)
• Bug in train_test_split function (#497)