add completed/remaining steps widget/navigation in pedestrian mode

[snooppr]

Describe the idea (required)

When navigating in the "pedestrian" mode, add custom settings in the form of the number of taken/remaining steps taken on the widget and displaying the information on the graph.

Many fancy gadgets have been doing this for a long time, and some people sense distance in steps better than SI. In addition, when each step is difficult (injury, fatigue, long journey), the pedometer metric becomes more preferable.

Tell us about the expected behaviour (required)

Also make it possible to customize the stride length (0.6m - 0.9m) in the navigation menu, where other parameters, such as average speed, are adjusted.

Tell us about alternatives you've considered (required)

Yandex maps in the latest versions have already added such functionality, ahead of OsmAnd, seizing the initiative.

Context (optional)

This innovation, in theory, will make OsmAnd more popular among tourists and active people. In any case, the trend of pedometers has long been set, trackers are introducing functionality and OsmAnd cannot stand aside, because it is the most touristy.