Citrine Pokecenter, trade refactoring

I am tired of doing the Legendary wing event, so I'm populating Citrine City.

Some notes;
- I refactored the In-Game Trades to match their nicknames and re-distributed them.
- I swapped Fuschia's bench guy for the third unused one meant for the safe house, but I may outright restore these.
- I refactored the Pokecenter Hidden Objects to all use the same set - they're clones of each other, so this works out. This saves a TON of bytes and works fine.
- I placed the Harry trade for Kadabra/Alakazam in Citrine Pokecenter as it feels right for such a powerful Pokemon to be post-game.

scripts/CitrinePokecenter.asm

@@ -0,0 +1,37 @@
+CitrinePokecenter_Script:
+	call Serial_TryEstablishingExternallyClockedConnection
+	jp EnableAutoTextBoxDrawing
+
+CitrinePokecenter_TextPointers:
+	dw CitrineHealNurseText
+	dw CitrinePokecenterText2
+	dw CitrinePokecenterText3
+	dw CitrineTradeNurseText
+	dw KadabraTrade
+	dw CitrinePokeCenterText4
+
+CitrineTradeNurseText:
+	script_cable_club_receptionist
+
+CitrineHealNurseText:
+	script_pokecenter_nurse
+
+CitrinePokecenterText2:
+	text_far _CitrinePokecenterText2
+	text_end
+
+CitrinePokecenterText3:
+	text_far _CitrinePokecenterText3
+	text_end
+	
+KadabraTrade:
+	text_asm
+	ld a, TRADE_FOR_HARRY
+	ld [wWhichTrade], a
+	predef DoInGameTradeDialogue
+	jp TextScriptEnd
+
+CitrinePokeCenterText4:
+	text_asm
+	callfar PokecenterChanseyText
+	jp TextScriptEnd