3.0.0

Added

• dtype configuration variable in Config to set precision of calculations.
• Kerr gate calculation in PureFockSimulator performance improved.
• Gradient calculation in TensorflowPureFockSimulator got improved.
• A method called PureFockState.mean_position which calculates the average position
  in a specified mode.
• normalize configuration variable in Config to enable/disable normalization of
  states PureFockSimulator and FockSimulator.

Changed

• Displacement parametrization is simplified.
• The autoscaling of single mode gates got deleted.

Fixed

• Vacuum state typing issue fixed in PureFockSimulator.
• Calculation error during gradient calculation.