Allow to set custom name of coverage file raw name.
Allow to set custom name of coverage file raw name.

As is noted on Codeception, --coverage option is allowed to set custom
file name.

iMi-digital/iRobo,MAXakaWIZARD/Robo,BionicClick/Robo,gabor-udvari/Robo,FlowCommunications/Robo,iMi-digital/iRobo,Korikulum/Robo,kostajh/Robo,Codegyre/Robo,vpassapera/Robo,holyspecter/Robo,ahmetgunes/Robo,burzum/Robo,sprklinginfo/Robo,iMi-digital/iRobo,davidrjonas/Robo,boedah/Robo,logbon72/Robo,duxet/Robo,duxet/Robo,orls/Robo