History: User_Tracker_gender_user_pref_field

            Optional ''Gender'' field for https://profiles.tiki.org/User_Tracker

The field will be visible only by the creator user and Admins group.

Preference "Users can choose to show their gender" and the userpreference type tracker field will be enabled by applying this profile snippet.

{CODE(caption=YAML)}
preferences:
 trackerfield_userpreference: y
 feature_community_gender: y
objects:
 -
  type: tracker_field
  ref: gender_user
  data:
   name: $profilerequest:Name for the "Gender" field:$Gender$
   description: Options are "Male", "Female" or "Hidden"
   tracker: $User_Tracker:user_tracker
   options: gender
   type: preference
   visible: creator_editable
   visby: 
    - Admins
{CODE}