Sepia City Gym & badge infrastructure

Nihon badges now count and Sepia City has its Gym Leader. All fully functional.

I've also distributed the transfer-exclusive Kanto Pokemon items to their relevant owners, plus the Polkadot Bow.

engine/menus/intro_menu.asm

@@ -204,6 +204,7 @@ _ResetWRAM:
 
 	ld [wJohtoBadges], a
 	ld [wKantoBadges], a
+	ld [wNihonBadges], a
 
 	ld [wCoins], a
 	ld [wCoins + 1], a
@@ -611,7 +612,7 @@ Continue_UnknownGameTime:
 Continue_DisplayBadgeCount:
 	push hl
 	ld hl, wJohtoBadges
-	ld b, 2
+	ld b, 3
 	call CountSetBits
 	pop hl
 	ld de, wNumSetBits

engine/pokegear/radio.asm

@@ -1073,7 +1073,7 @@ PeoplePlaces4: ; People
 	bit STATUSFLAGS_HALL_OF_FAME_F, a
 	jr z, .ok
 	ld hl, PnP_HiddenPeople_BeatE4
-	ld a, [wKantoBadges]
+	ld a, [wKantoBadges] ; TODO: See if a Nihon equivalent is warranted.
 	cp %11111111 ; all badges
 	jr nz, .ok
 	ld hl, PnP_HiddenPeople_BeatKanto