rework the fairies: now it can be build and got influenced by serfdom and other policies. desserts now reduce purchasing price of the fairies.

fix a bug may cause the game to crush.
change civ trait to make it actually work.

remove improvement from new seasonal ticket

grant shipbuilding after sailing to make the fairies able to embark
fix for fariy co for not providing food for internal buildings
fix later cities not being able to generate the fairies
fairies wonder acceleration per each build charge will not be greater than 20% of the most expensive classical era wonder (i.e. 400*0.2 = 80 in standard speed).

航海之后给与造船，以让妖精桑上船
修复妖精社不能正确给予基于内部建筑的食物
修复晚期城市不能生成妖精桑
妖精现在加速奇观每个劳动力的加速值不会超过古典时代最贵奇观耗费的20% (也就是说在标准速度下，400*0.2=80)

find a way to accelerate wonder after classic era
找到办法加速古典后奇观了

hotfix

the fairies can now build improvement of new DLC now.
some localization fix

妖精桑可以建造新DLC的改良了
本地化修复

Fix a few bugs
Add projects for the fairies to add build charge for them, since they don't benefit from Liang, Serfdom and Public Works.

修复了几个bug
为妖精桑增加了几个工程，来为它们增加工作次数，因为他们没法从梁，农奴制和公共工程中收益。