added option to reduce memory consumption of AStar
added option to reduce memory consumption of AStar

hguerrero/graphhopper,seeebiii/graphhopper,zzottel/graphhopper,DIVERSIFY-project/SMART-GH,mmalfertheiner/graphhopper,zhiqiangZHAO/graphhopper,kalvish/graphhopper,ammagamma/graphhopper,Kwangseob/graphhopper,Kwangseob/graphhopper,tsammons/SMART-GH,heisenpai/GraphHopper,SamSix/graphhopper,cloudbearings/SMART-GH,SamSix/graphhopper,piemapping/graphhopper,mmalfertheiner/graphhopper,msoftware/graphhopper,ammagamma/graphhopper,Ranjan101/graphhopper,CEPFU/graphhopper,tobias74/graphhopper,msoftware/graphhopper,DIVERSIFY-project/SMART-GH,HelgeKrueger/graphhopper,joh12041/graphhopper,mmalfertheiner/graphhopper,SamSix/graphhopper,prembasumatary/graphhopper,tobias74/graphhopper,heisenpai/GraphHopper,tlatt/graphhopper,devemux86/graphhopper,tobias74/graphhopper,CEPFU/graphhopper,prembasumatary/graphhopper,cecemel/graphhopper,seeebiii/graphhopper,jansoe/graphhopper,ratrun/graphhopper,boldtrn/graphhopper,kod3r/graphhopper,hguerrero/graphhopper,cloudbearings/SMART-GH,PGWelch/graphhopper,ammagamma/graphhopper,Ranjan101/graphhopper,komoot/graphhopper,cloudbearings/SMART-GH,joh12041/graphhopper,joh12041/graphhopper,fbonzon/graphhopper,piemapping/graphhopper,nside/graphhopper,HelgeKrueger/graphhopper,engaric/graphhopper,jansoe/graphhopper,DIVERSIFY-project/SMART-GH,routexl/graphhopper,zzottel/graphhopper,hguerrero/graphhopper,prembasumatary/graphhopper,msoftware/graphhopper,cecemel/graphhopper,prembasumatary/graphhopper,boldtrn/graphhopper,don-philipe/graphhopper,kalvish/graphhopper,SamSix/graphhopper,PGWelch/graphhopper,DIVERSIFY-project/SMART-GH,msoftware/graphhopper,engaric/graphhopper,cloudbearings/SMART-GH,Kwangseob/graphhopper,routexl/graphhopper,kod3r/graphhopper,devemux86/graphhopper,nside/graphhopper,HelgeKrueger/graphhopper,PGWelch/graphhopper,seeebiii/graphhopper,komoot/graphhopper,ratrun/graphhopper,kalvish/graphhopper,DIVERSIFY-project/SMART-GH,jansoe/graphhopper,tlatt/graphhopper,bendavidson/graphhopper,cecemel/graphhopper,bendavidson/graphhopper,joh12041/graphhopper,don-philipe/graphhopper,fbonzon/graphhopper,zhiqiangZHAO/graphhopper,CEPFU/graphhopper,tsammons/SMART-GH,boldtrn/graphhopper,bendavidson/graphhopper,zhiqiangZHAO/graphhopper,komoot/graphhopper,graphhopper/graphhopper,graphhopper/graphhopper,piemapping/graphhopper,ammagamma/graphhopper,devemux86/graphhopper,heisenpai/GraphHopper,graphhopper/graphhopper,Ranjan101/graphhopper,nside/graphhopper,tsammons/SMART-GH,devemux86/graphhopper,tlatt/graphhopper,kalvish/graphhopper,routexl/graphhopper,routexl/graphhopper,don-philipe/graphhopper,SamSix/graphhopper,tsammons/SMART-GH,hguerrero/graphhopper,seeebiii/graphhopper,mmalfertheiner/graphhopper,engaric/graphhopper,don-philipe/graphhopper,cloudbearings/SMART-GH,Kwangseob/graphhopper,heisenpai/GraphHopper,ratrun/graphhopper,kod3r/graphhopper,fbonzon/graphhopper,tlatt/graphhopper,zzottel/graphhopper,graphhopper/graphhopper,zhiqiangZHAO/graphhopper,Ranjan101/graphhopper,engaric/graphhopper,boldtrn/graphhopper,nside/graphhopper,zhiqiangZHAO/graphhopper,HelgeKrueger/graphhopper,komoot/graphhopper,bendavidson/graphhopper,nside/graphhopper,kod3r/graphhopper,cecemel/graphhopper,PGWelch/graphhopper,tobias74/graphhopper,CEPFU/graphhopper,ratrun/graphhopper,piemapping/graphhopper,zzottel/graphhopper,fbonzon/graphhopper,tsammons/SMART-GH,jansoe/graphhopper