added operations to be run on selected nominations like combining them under a group nomination
added operations to be run on selected nominations like combining them under a group nomination

SummerCamp17/Gymkhana-Nominations,aniketp41/Gymkhana-Nominations,SummerCamp17/Gymkhana-Nominations,aniketp41/Gymkhana-Nominations,aniketp41/Gymkhana-Nominations,SummerCamp17/Gymkhana-Nominations