Max edge distance too low

[xivk]

Figure out a way to increase the max allowed weight on contracted edges in an non-breaking way. A mistake was made in calculating the range of this value.

This needs to be '10' instead of '100':

https://github.com/itinero/routing/blob/develop/src/Itinero/Data/Contracted/Edges/ContractedEdgeDataSerializer.cs#L33

Suggested fix:

• Add a value to the routerdb that holds this. Don't increase the routerdb version # but add this is a non-breaking way.
• Use this value to decode the contracted edge data.
• Remove this behaviour again in Itinero 2.0.