Add option to stop animation after a specified period

[clive107]

Is your feature request related to a problem? Please describe.
For now, the duration that passed into the WaveWidget is not being used. It would be good to be able to stop animations after a specified duration.

Describe the solution you'd like
Add a property isLoop(bool) to the WaveWidget with default true. If isLoop is false, stop the animations after the specified duration.

Describe alternatives you've considered
n/a

Additional context
n/a