Finish porting battle frontier data

include/constants/trainers.h

@@ -200,6 +200,8 @@
 #define FACILITY_CLASS_RS_BRENDAN           0x50
 #define FACILITY_CLASS_RS_MAY               0x51
 
+#define FACILITY_CLASSES_COUNT 0x52
+
 #define TRAINER_CLASS_PKMN_TRAINER_1 0x0
 #define TRAINER_CLASS_PKMN_TRAINER_2 0x1
 #define TRAINER_CLASS_HIKER          0x2