Add zh_CN translation

mods/farming/locale/farming.zh_CN.tr

@@ -0,0 +1,25 @@
+# textdomain: farming
+Wooden Hoe=木锄
+Stone Hoe=石锄
+Steel Hoe=铁锄
+Bronze Hoe=青铜锄
+Mese Hoe=Mese锄
+Diamond Hoe=钻石锄
+Wheat Seed=小麦种子
+Flour=面粉
+Bread=面包
+Cotton Seed=棉花种子
+String=线
+Soil=土
+Wet Soil=湿土
+Dry Soil=干土
+Wet Dry Soil=湿干土
+Desert Sand Soil=沙漠沙土
+Wet Desert Sand Soil=湿沙漠沙土
+Straw=稻草
+Straw Stair=稻草台阶
+Inner Straw Stair=稻草内楼梯
+Outer Straw Stair=稻草外楼梯
+Straw Slab=稻草板
+Wheat=小麦
+Cotton=棉