Lane-by-lane breakdown for swimming workouts

[piscoTech]

When a swimming workout provides information about lane length switch to a lane-by-lane breakdown for details which provides lane number, pace, hart rate and stroke count on screen and additionally start and end time (relative to workout start) when exporting.

[piscoTech]

It could be better to just use start and duration in CSV exporting while onscreen display also duration maybe by sacrificing heart rate (only four details fit on screen), which would still be included when exporting.