[ENH] Boolean-Trap: add variants of FTB001-FTB003 for None.

[randolf-scholz]

The same rationale behind the Boolean-Trap can be applied to None arguments, especially rule FBT003

class Slider:
    def __init__(xmin: float, xmax: float, initial_value: Optional[float] = None):
          self.xmin = xmin
          self.xmax = xmax
          initial_value = (xmin+xmax)/2 if initial_value is None else initial_value

Slider(0, 1, None)  # <--- meaning of None unclear
Slider(0, 1)  # <--- better
Slider(0, 1, initial_value=None)  # <--- better