PWGGA/GammaConv: add trainconfig for testing added particles
PWGGA/GammaConv: add trainconfig for testing added particles

pchrista/AliPhysics,nschmidtALICE/AliPhysics,AMechler/AliPhysics,adriansev/AliPhysics,mpuccio/AliPhysics,rbailhac/AliPhysics,rihanphys/AliPhysics,fcolamar/AliPhysics,amaringarcia/AliPhysics,pchrista/AliPhysics,nschmidtALICE/AliPhysics,fbellini/AliPhysics,fcolamar/AliPhysics,adriansev/AliPhysics,lcunquei/AliPhysics,fcolamar/AliPhysics,mpuccio/AliPhysics,fbellini/AliPhysics,pchrista/AliPhysics,rihanphys/AliPhysics,mpuccio/AliPhysics,alisw/AliPhysics,pchrista/AliPhysics,fbellini/AliPhysics,fbellini/AliPhysics,lcunquei/AliPhysics,lcunquei/AliPhysics,victor-gonzalez/AliPhysics,rihanphys/AliPhysics,fbellini/AliPhysics,mpuccio/AliPhysics,hzanoli/AliPhysics,AMechler/AliPhysics,victor-gonzalez/AliPhysics,dmuhlhei/AliPhysics,amaringarcia/AliPhysics,SHornung1/AliPhysics,AMechler/AliPhysics,nschmidtALICE/AliPhysics,amaringarcia/AliPhysics,dmuhlhei/AliPhysics,hzanoli/AliPhysics,fcolamar/AliPhysics,adriansev/AliPhysics,AMechler/AliPhysics,alisw/AliPhysics,nschmidtALICE/AliPhysics,fcolamar/AliPhysics,rihanphys/AliPhysics,rbailhac/AliPhysics,nschmidtALICE/AliPhysics,dmuhlhei/AliPhysics,SHornung1/AliPhysics,alisw/AliPhysics,SHornung1/AliPhysics,SHornung1/AliPhysics,adriansev/AliPhysics,nschmidtALICE/AliPhysics,rbailhac/AliPhysics,mpuccio/AliPhysics,AMechler/AliPhysics,hzanoli/AliPhysics,pchrista/AliPhysics,dmuhlhei/AliPhysics,adriansev/AliPhysics,rbailhac/AliPhysics,amaringarcia/AliPhysics,SHornung1/AliPhysics,rihanphys/AliPhysics,victor-gonzalez/AliPhysics,alisw/AliPhysics,nschmidtALICE/AliPhysics,rbailhac/AliPhysics,amaringarcia/AliPhysics,lcunquei/AliPhysics,lcunquei/AliPhysics,amaringarcia/AliPhysics,dmuhlhei/AliPhysics,hzanoli/AliPhysics,lcunquei/AliPhysics,victor-gonzalez/AliPhysics,rbailhac/AliPhysics,dmuhlhei/AliPhysics,alisw/AliPhysics,pchrista/AliPhysics,mpuccio/AliPhysics,rihanphys/AliPhysics,lcunquei/AliPhysics,fcolamar/AliPhysics,mpuccio/AliPhysics,rbailhac/AliPhysics,alisw/AliPhysics,AMechler/AliPhysics,victor-gonzalez/AliPhysics,fcolamar/AliPhysics,SHornung1/AliPhysics,victor-gonzalez/AliPhysics,adriansev/AliPhysics,dmuhlhei/AliPhysics,fbellini/AliPhysics,amaringarcia/AliPhysics,SHornung1/AliPhysics,hzanoli/AliPhysics,hzanoli/AliPhysics,adriansev/AliPhysics,alisw/AliPhysics,fbellini/AliPhysics,victor-gonzalez/AliPhysics,pchrista/AliPhysics,AMechler/AliPhysics,hzanoli/AliPhysics,rihanphys/AliPhysics