Add suffixes to some constants to avoid ambiguity

- `PSYCHIC` → `PSYCHIC_TYPE` (not the trainer `PSYCHIC_T` or the move `PSYCHIC_M`)
- `BLACKBELT` → `BLACKBELT_I` (not the trainer `BLACKBELT_T`)
- `CURSE_T` → `CURSE_TYPE` (not the move `CURSE`)
- `TOWN_MAP_D` → `TOWN_MAP_POSTER` (not the item `TOWN_MAP`)

This also uncovered a misidentified event: `EVENT_DECO_PLANT_4` → `EVENT_DECO_POSTER_1`. (There are three plants and four posters.)

engine/battle/move_effects/conversion.asm

@@ -46,7 +46,7 @@ BattleCommand_Conversion:
 	ld a, [hl]
 	cp -1
 	jr z, .fail
-	cp CURSE_T
+	cp CURSE_TYPE
 	jr z, .next
 	ld a, [de]
 	cp [hl]
@@ -75,7 +75,7 @@ BattleCommand_Conversion:
 	ld a, [hl]
 	cp -1
 	jr z, .loop3
-	cp CURSE_T
+	cp CURSE_TYPE
 	jr z, .loop3
 	ld a, [de]
 	cp [hl]

engine/battle/move_effects/conversion2.asm

@@ -20,7 +20,7 @@ BattleCommand_Conversion2:
 	call GetMoveAttr
 	ld d, a
 	pop hl
-	cp CURSE_T
+	cp CURSE_TYPE
 	jr z, .failed
 	call AnimateCurrentMove
 	call BattleCommand_SwitchTurn