Support StreetMap

[ctieben]

Add support for a street map/graph in SEMPR

see:
http://www.opendrive.org/download.html
https://wiki.openstreetmap.org/wiki/Sophox_query_service
https://wiki.openstreetmap.org/wiki/OSM_XML
http://linkedgeodata.org/About

[niniemann]

Is this something urgent we need for some project, or rather a cool idea for the future? 🙂

[ctieben]

Its a idea for the future and would be a benefit for SEMPR.