Bicycle routing ignores implicit access restrictions on motorroads

[mangerlahn]

Issue

Please consider the following example

OSRM ignores the motorroad tag on a given highway. Motor roads implicitly block access to pedestrians and cyclists. However, OSMR routes via the given highway.

[tombay]

workaround.
As a workaround :
In bicycle.lua (and foot.lua) add 'motorroad' to the avoid Set.
in way_handler.lua add a check to the function WayHandlers.blocked_ways.

-- motorroad
if profile.avoid.motorroad and way:get_value_by_key("motorroad") == "yes" then
return false
end