Time laps in stopwatch activity should be reset when reset button is clicked

[Swayamsvk]

The time-lapse feature in the stopwatch activity should save the time-lapse in a continuous manner without any interruptions. But currently, as the reset button exists it creates a problem. The reset button is responsible to reset the time in the middle of a time-lapse

and it may create a problem if it is being used to record time-lapse in an actual event.

[prakashujjwal1010]

@Swayamsvk , I think, a quick and simple fix can be just clearing all the timelapses whenever the reset button is clicked. See here :)

[Swayamsvk]

@prakashujjwal1010 it seems like a good idea.

[llaske]

Fixed in #625