use configuration file

Author: rashigupt

MC/config/PWGHF/ini/GeneratorHF_Non_Hfe.ini

@@ -0,0 +1,4 @@
+#### This configuration uses the Hybrid external generator to trigger π⁰/η production within the specified rapidity window
+
+[GeneratorHybrid]
+configFile = ${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGHF/hybrid/GeneratorHF_Non_Hfe.json