[mkgmap-dev] Commit r4548: rework handling of nodes in osm input files

Version mkgmap-r4548 was committed by gerd on Tue, 16 Jun 2020 rework handling of nodes in osm input files - see also r4541 and r4547 which reverted it (problem was that HousenumberHooks expected that the hook was called for each coord of a way) - replace onCoordAddedToWay by onNodeAddedToWay again, be aware that the hooks can replace the objects which are associated with the node id. - change HousenumberHooks so that the tagged nodes of interpolation ways are properly collected - move common code for node members of relations into ElementSaver - further simplify code in HousenumberHooks by using streams http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4548