Reimplement Smart route recalculation if possible about osmand

[vshcherb]

Yes Smart recalculation was initially implemented for first 20-30 km, later we used by default only after 2 intermediate destination. The issue with "smart" it wasn't generated correct optimal routes, we think to do something in the future once we identify most typical use cases

[Guylby]

For my use in Car routing, this is where this feature would be most useful:

• Taking a small detour: during a long trip you often take small detours without changing the main route, for example:
  Taking a highway exit for refueling/taking a break,
  Stopping in a town for food/break/etc...

• Roadworks/roads closed that force you to take an alternate route.

• Incorrect navigation: sometimes you just miss the turn in a town, arrive in a confusion intersection, or you are stuck in traffic and can't change lane.

All are small detours that are less than 10kms but causes a lot of route recalculation for the entire itinerary, when you just want to get back to the main itinerary as soon as possible.