make day for conditional tag parsing configurable

[karussell]

fixes #1815

[easbar]

Cool thanks! The measurement failed with

 Exception in thread "main" java.lang.IllegalStateException: Cannot load properties to fetch EncodingManager configuration at: /ext_data/osm/bayern-190101.osm-gh/
219 	at com.graphhopper.routing.util.EncodingManager.create(EncodingManager.java:110)
220 	at com.graphhopper.GraphHopper.load(GraphHopper.java:742)
221 	at com.graphhopper.GraphHopper.importOrLoad(GraphHopper.java:617)
222 	at com.graphhopper.tools.Measurement.start(Measurement.java:146)
223 	at com.graphhopper.tools.Measurement.main(Measurement.java:67)

... no idea why. Could it be due to the code changes here (changed init() calls or something ?). I think in the measurements we rely on the clean() call in Measurement to remove the gh-folder of previous builds (need to check)

[karussell]

It seems that GraphHopper.init did not initialize the EncodingManager and so this code is entered which tries to create the EncodingManager from the properties file (and fails as the folder does not exist):

https://github.com/graphhopper/graphhopper/blob/master/core/src/main/java/com/graphhopper/GraphHopper.java#L740

[karussell]

Ah, that was my fault :D ... see the change

[easbar]

ah this happened to me multiple times :(

[easbar]

Now it worked (even though it shows as failing here, because I canceled one of the two duplicate builds)