Allow easily adding shuttle bus services by creating linked connections of OSM-shuttlebuses

[pietervdvn]

Testing relations:

Shuttlebus Brugge:

• https://www.openstreetmap.org/relation/9413958?xhr=1

Wandelbus Gent: This is a continuous loop without fixed stops

• https://www.openstreetmap.org/relation/7728950

Shuttlebus Gent P&R:

• https://www.openstreetmap.org/relation/9508548#map=14/51.0620/3.
• https://www.openstreetmap.org/relation/9594575 (Thx Midgard!)

Features:

• Adding stops by stop position from relation
• Adding stops by public_transport=platform from relation (and not duplicating them)
• Determining frequency by interval and duration
• Automatically reloading the relation every day
• Scheduling buses based on 'opening_hours' (although opening hours parsing is far from complete)
• Determining duration by the actual route features
• Determining exact stops of timing based on integrated timetables

[pietervdvn]

Depends slightly on #23

[pietervdvn]

First version of it is built.

It is possible to create transitDBs from one OSM-relation with IDP and to use them.

However, the parsing of the data should be improved and an automatic reloading should be possible with it.