give the option to switch to the legacy wraith kunai spin animation

People really liked the old animation and I feel like wraiths spam inspect is a factor of why people bought the heirloom in the first place, the old one flowed way better than the new one imo and there were people who did notice the change in animation after it was changed. This would really be awesome to us wraith mains who bought the kunai for this exact spin animation which is more people than you think