[Feature #137085743] Created serializer class for exercise model
[Feature #137085743] Created serializer class for exercise model

wger-project/wger,petervanderdoes/wger,wger-project/wger,rolandgeider/wger,petervanderdoes/wger,petervanderdoes/wger,petervanderdoes/wger,wger-project/wger,rolandgeider/wger,rolandgeider/wger,rolandgeider/wger,wger-project/wger