Brothel Megacorporation 0.22: More Rank A animations

This update introduces new rank A progression and new training animations for Zoe, Nicole and Ayaka. I updated the models for these courtesans so they should look better now (I hope to do so for all the "older" models eventually)! There is also a new "special cow" status screen added to the milk farm and bugfixes. The specialisation events will be put on hold for now so I can finish all the training animations that are required as soon as possible (we're already halfway there). 

  Changelog: 

•  Rank A training for Zoe, Nicole, Ayaka. (24 new animations) 
•  New "Special Cow" status screen added to the milk farm 
•  Fix for Denise-Julia rank A mix-up and other bugs 
•  New Denise repeatable animation in the club