v0.22.23

IntervalArithmetic v0.22.23

Diff since v0.22.22

Merged pull requests:

• Implement piecewise function (#689) (@Kolaru)
• Fix isdisjoint_interval for multiple input (#696) (@OlivierHnt)

Closed issues:

• Piecewise functions (#655)
• isdisjoint_interval broken for multiple arguments (#695)