code: public static void addNewMapping(final Class<?> type, final String property, final String mapping) {
          allowedColmns.computeIfAbsent(type, k -> new HashMap<>());
          allowedColmns.get(type).put(property, mapping);
      }
docs: Add new mapping - property name and alias.
  
  @param type
  entity type
  @param property
  alias of property
  @param mapping
  property name