Clarify Transportation geometry types

[balazsdukai]

I stumbled on the Transportation geometry types several times already, so I made it clear in the specs.

Related to the geometry types, I made an overview table, because I often have to dig through the specs for the allowed geometry types for each CityObject and it's easy to get things mixed up. I haven't added to the specs, because it would duplicate the info that is already in there. Or what do you think?
I made the table by parsing the schemas with a python script.

CityObject type	Geometry type
Bridge	MultiSurface, CompositeSurface, Solid, CompositeSolid
BridgeConstructiveElement	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BridgeFurniture	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BridgeInstallation	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BridgePart	MultiSurface, CompositeSurface, Solid, CompositeSolid
BridgeRoom	MultiSurface, CompositeSurface, Solid, CompositeSolid
Building	MultiSurface, CompositeSurface, Solid, CompositeSolid
BuildingConstructiveElement	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BuildingFurniture	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BuildingInstallation	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
BuildingPart	MultiSurface, CompositeSurface, Solid, CompositeSolid
BuildingRoom	MultiSurface, CompositeSurface, Solid, CompositeSolid
BuildingStorey	MultiSurface, CompositeSurface, Solid, CompositeSolid
BuildingUnit	MultiSurface, CompositeSurface, Solid, CompositeSolid
CityFurniture	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
CityObjectGroup	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid
GenericCityObject	MultiPoint, MultiLineString, Solid, MultiSolid, CompositeSolid, MultiSurface, CompositeSurface, GeometryInstance
LandUse	MultiSurface, CompositeSurface
OtherConstruction	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
PlantCover	MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid
Railway	MultiLineString, MultiSurface, CompositeSurface
Road	MultiLineString, MultiSurface, CompositeSurface
SolitaryVegetationObject	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
TINRelief	CompositeSurface
TransportSquare	MultiLineString, MultiSurface, CompositeSurface
Tunnel	MultiSurface, CompositeSurface, Solid, CompositeSolid
TunnelConstructiveElement	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
TunnelFurniture	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
TunnelHollowSpace	MultiSurface, CompositeSurface, Solid, CompositeSolid
TunnelInstallation	MultiPoint, MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid, MultiSolid, GeometryInstance
TunnelPart	MultiSurface, CompositeSurface, Solid, CompositeSolid
WaterBody	MultiLineString, MultiSurface, CompositeSurface, Solid, CompositeSolid
Waterway	MultiLineString, MultiSurface, CompositeSurface