finish decompiling battle_ai.c (#16)

* partially decompile battle_ai.c up to tai60_unk

* nonmatching tai60_unk

* decompile more of battle_ai.c

* formatting

* finish porting battle_ai.c

* formatting

include/abilities.h

@@ -0,0 +1,81 @@
+enum
+{
+    ABILITY_NONE,
+    ABILITY_STENCH,
+    ABILITY_DRIZZLE,
+    ABILITY_SPEED_BOOST,
+    ABILITY_BATTLE_ARMOR,
+    ABILITY_STURDY,
+    ABILITY_DAMP,
+    ABILITY_LIMBER,
+    ABILITY_SAND_VEIL,
+    ABILITY_STATIC,
+    ABILITY_VOLT_ABSORB,
+    ABILITY_WATER_ABSORB,
+    ABILITY_OBLIVIOUS,
+    ABILITY_CLOUD_NINE,
+    ABILITY_COMPOUND_EYES,
+    ABILITY_INSOMNIA,
+    ABILITY_COLOR_CHANGE,
+    ABILITY_IMMUNITY,
+    ABILITY_FLASH_FIRE,
+    ABILITY_SHIELD_DUST,
+    ABILITY_OWN_TEMPO,
+    ABILITY_SUCTION_CUPS,
+    ABILITY_INTIMIDATE,
+    ABILITY_SHADOW_TAG,
+    ABILITY_ROUGH_SKIN,
+    ABILITY_WONDER_GUARD,
+    ABILITY_LEVITATE,
+    ABILITY_EFFECT_SPORE,
+    ABILITY_SYNCHRONIZE,
+    ABILITY_CLEAR_BODY,
+    ABILITY_NATURAL_CURE,
+    ABILITY_LIGHTNING_ROD,
+    ABILITY_SERENE_GRACE,
+    ABILITY_SWIFT_SWIM,
+    ABILITY_CHLOROPHYLL,
+    ABILITY_ILLUMINATE,
+    ABILITY_TRACE,
+    ABILITY_HUGE_POWER,
+    ABILITY_POISON_POINT,
+    ABILITY_INNER_FOCUS,
+    ABILITY_MAGMA_ARMOR,
+    ABILITY_WATER_VEIL,
+    ABILITY_MAGNET_PULL,
+    ABILITY_SOUNDPROOF,
+    ABILITY_RAIN_DISH,
+    ABILITY_SAND_STREAM,
+    ABILITY_PRESSURE,
+    ABILITY_THICK_FAT,
+    ABILITY_EARLY_BIRD,
+    ABILITY_FLAME_BODY,
+    ABILITY_RUN_AWAY,
+    ABILITY_KEEN_EYE,
+    ABILITY_HYPER_CUTTER,
+    ABILITY_PICKUP,
+    ABILITY_TRUANT,
+    ABILITY_HUSTLE,
+    ABILITY_CUTE_CHARM,
+    ABILITY_PLUS,
+    ABILITY_MINUS,
+    ABILITY_FORECAST,
+    ABILITY_STICKY_HOLD,
+    ABILITY_SHED_SKIN,
+    ABILITY_GUTS,
+    ABILITY_MARVEL_SCALE,
+    ABILITY_LIQUID_OOZE,
+    ABILITY_OVERGROW,
+    ABILITY_BLAZE,
+    ABILITY_TORRENT,
+    ABILITY_SWARM,
+    ABILITY_ROCK_HEAD,
+    ABILITY_DROUGHT,
+    ABILITY_ARENA_TRAP,
+    ABILITY_VITAL_SPIRIT,
+    ABILITY_WHITE_SMOKE,
+    ABILITY_PURE_POWER,
+    ABILITY_SHELL_ARMOR,
+    ABILITY_CACOPHONY,
+    ABILITY_AIR_LOCK
+};