Restore Timer#thread on resume
Restore Timer#thread on resume

Fixes #3181

anserran/libgdx,xoppa/libgdx,tell10glu/libgdx,toloudis/libgdx,309746069/libgdx,snovak/libgdx,designcrumble/libgdx,nudelchef/libgdx,stinsonga/libgdx,alex-dorokhov/libgdx,1yvT0s/libgdx,youprofit/libgdx,tell10glu/libgdx,FyiurAmron/libgdx,copystudy/libgdx,NathanSweet/libgdx,curtiszimmerman/libgdx,anserran/libgdx,snovak/libgdx,junkdog/libgdx,cypherdare/libgdx,JDReutt/libgdx,sjosegarcia/libgdx,MetSystem/libgdx,antag99/libgdx,fiesensee/libgdx,gdos/libgdx,nrallakis/libgdx,MovingBlocks/libgdx,Zonglin-Li6565/libgdx,MikkelTAndersen/libgdx,xranby/libgdx,FyiurAmron/libgdx,gf11speed/libgdx,mumer92/libgdx,ztv/libgdx,cypherdare/libgdx,sarkanyi/libgdx,PedroRomanoBarbosa/libgdx,KrisLee/libgdx,sjosegarcia/libgdx,youprofit/libgdx,Dzamir/libgdx,SidneyXu/libgdx,revo09/libgdx,Dzamir/libgdx,Heart2009/libgdx,nudelchef/libgdx,MikkelTAndersen/libgdx,bsmr-java/libgdx,Wisienkas/libgdx,ya7lelkom/libgdx,nrallakis/libgdx,curtiszimmerman/libgdx,toloudis/libgdx,ninoalma/libgdx,ricardorigodon/libgdx,1yvT0s/libgdx,shiweihappy/libgdx,fwolff/libgdx,alireza-hosseini/libgdx,Xhanim/libgdx,xpenatan/libgdx-LWJGL3,Dzamir/libgdx,Dzamir/libgdx,bsmr-java/libgdx,PedroRomanoBarbosa/libgdx,kotcrab/libgdx,tell10glu/libgdx,katiepino/libgdx,ninoalma/libgdx,nrallakis/libgdx,ztv/libgdx,sjosegarcia/libgdx,collinsmith/libgdx,codepoke/libgdx,309746069/libgdx,tell10glu/libgdx,Deftwun/libgdx,MikkelTAndersen/libgdx,zommuter/libgdx,TheAks999/libgdx,ninoalma/libgdx,josephknight/libgdx,MetSystem/libgdx,shiweihappy/libgdx,KrisLee/libgdx,mumer92/libgdx,djom20/libgdx,haedri/libgdx-1,309746069/libgdx,MadcowD/libgdx,MovingBlocks/libgdx,antag99/libgdx,yangweigbh/libgdx,GreenLightning/libgdx,JFixby/libgdx,Badazdz/libgdx,xpenatan/libgdx-LWJGL3,Thotep/libgdx,gouessej/libgdx,jsjolund/libgdx,zommuter/libgdx,ya7lelkom/libgdx,Zonglin-Li6565/libgdx,sarkanyi/libgdx,firefly2442/libgdx,gf11speed/libgdx,revo09/libgdx,tommyettinger/libgdx,andyvand/libgdx,czyzby/libgdx,czyzby/libgdx,tell10glu/libgdx,czyzby/libgdx,yangweigbh/libgdx,MikkelTAndersen/libgdx,shiweihappy/libgdx,saqsun/libgdx,jsjolund/libgdx,BlueRiverInteractive/libgdx,billgame/libgdx,tell10glu/libgdx,del-sol/libgdx,petugez/libgdx,TheAks999/libgdx,GreenLightning/libgdx,Senth/libgdx,BlueRiverInteractive/libgdx,SidneyXu/libgdx,xpenatan/libgdx-LWJGL3,jberberick/libgdx,noelsison2/libgdx,youprofit/libgdx,sjosegarcia/libgdx,js78/libgdx,jasonwee/libgdx,fwolff/libgdx,bladecoder/libgdx,mumer92/libgdx,1yvT0s/libgdx,ricardorigodon/libgdx,yangweigbh/libgdx,del-sol/libgdx,MikkelTAndersen/libgdx,ttencate/libgdx,curtiszimmerman/libgdx,NathanSweet/libgdx,flaiker/libgdx,libgdx/libgdx,titovmaxim/libgdx,FredGithub/libgdx,jasonwee/libgdx,MovingBlocks/libgdx,fwolff/libgdx,stinsonga/libgdx,anserran/libgdx,realitix/libgdx,SidneyXu/libgdx,shiweihappy/libgdx,KrisLee/libgdx,zommuter/libgdx,flaiker/libgdx,saltares/libgdx,MetSystem/libgdx,luischavez/libgdx,curtiszimmerman/libgdx,kotcrab/libgdx,gouessej/libgdx,firefly2442/libgdx,alex-dorokhov/libgdx,jberberick/libgdx,kotcrab/libgdx,309746069/libgdx,xoppa/libgdx,tommyettinger/libgdx,Gliby/libgdx,gdos/libgdx,xranby/libgdx,codepoke/libgdx,thepullman/libgdx,xranby/libgdx,alex-dorokhov/libgdx,FredGithub/libgdx,shiweihappy/libgdx,sarkanyi/libgdx,bgroenks96/libgdx,kotcrab/libgdx,kagehak/libgdx,alireza-hosseini/libgdx,ttencate/libgdx,josephknight/libgdx,kagehak/libgdx,ya7lelkom/libgdx,alex-dorokhov/libgdx,jberberick/libgdx,gouessej/libgdx,MovingBlocks/libgdx,katiepino/libgdx,thepullman/libgdx,UnluckyNinja/libgdx,PedroRomanoBarbosa/libgdx,noelsison2/libgdx,cypherdare/libgdx,Heart2009/libgdx,fiesensee/libgdx,Zonglin-Li6565/libgdx,bladecoder/libgdx,bgroenks96/libgdx,zommuter/libgdx,ttencate/libgdx,samskivert/libgdx,JFixby/libgdx,titovmaxim/libgdx,nudelchef/libgdx,bladecoder/libgdx,ricardorigodon/libgdx,kagehak/libgdx,czyzby/libgdx,toloudis/libgdx,FredGithub/libgdx,nave966/libgdx,yangweigbh/libgdx,sjosegarcia/libgdx,stickyd/libgdx,revo09/libgdx,fiesensee/libgdx,MetSystem/libgdx,tommyettinger/libgdx,BlueRiverInteractive/libgdx,firefly2442/libgdx,haedri/libgdx-1,shiweihappy/libgdx,josephknight/libgdx,ttencate/libgdx,ninoalma/libgdx,copystudy/libgdx,Xhanim/libgdx,snovak/libgdx,firefly2442/libgdx,andyvand/libgdx,Xhanim/libgdx,collinsmith/libgdx,xpenatan/libgdx-LWJGL3,Xhanim/libgdx,MadcowD/libgdx,js78/libgdx,noelsison2/libgdx,sjosegarcia/libgdx,Thotep/libgdx,Zonglin-Li6565/libgdx,hyvas/libgdx,titovmaxim/libgdx,nrallakis/libgdx,andyvand/libgdx,Zonglin-Li6565/libgdx,ThiagoGarciaAlves/libgdx,petugez/libgdx,stickyd/libgdx,Wisienkas/libgdx,codepoke/libgdx,MetSystem/libgdx,czyzby/libgdx,PedroRomanoBarbosa/libgdx,FyiurAmron/libgdx,Badazdz/libgdx,xoppa/libgdx,FredGithub/libgdx,kotcrab/libgdx,stickyd/libgdx,noelsison2/libgdx,flaiker/libgdx,djom20/libgdx,MetSystem/libgdx,firefly2442/libgdx,djom20/libgdx,thepullman/libgdx,toa5/libgdx,gouessej/libgdx,djom20/libgdx,petugez/libgdx,ninoalma/libgdx,shiweihappy/libgdx,gouessej/libgdx,MadcowD/libgdx,JFixby/libgdx,gdos/libgdx,kagehak/libgdx,stickyd/libgdx,hyvas/libgdx,titovmaxim/libgdx,snovak/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