Citrine geography rework, Metal Coat

Lots of things here. Citrine now has its own tileset featuring content from the prototype asset leak. This includes new grass, signs, and so on. Lots of tinkering had to be done to make it look good, but it does! Collision and everything is done, but grass needs to animate properly. I'm committing as-is because making the grass animate is actually very difficult.

Also added the Metal Coat and fixed the issues with prior evolution methods - evo items first, level-up second. It is currently unobtainable.

engine/debug/debug_party.asm

@@ -22,11 +22,11 @@ SetIshiharaTeam:
 
 IshiharaTeam:
 	db EXEGGUTOR_A, 90
-	db TAUROS, 90
-	db SLOWKING, 90
-	db RAPIDASH, 50
+	db PINSIR, 90
+	db DITTO, 90
+	db SCYTHER, 50
 IF DEF(_DEBUG)
-	db MUK, 50
+	db ONIX, 50
 ENDC
 	db -1 ; end
 
@@ -154,6 +154,8 @@ DebugItemsList:
 	db UP_GRADE, 1
 	db TM_MEGA_PUNCH, 1
 	db HM_SURF, 1
+	db METAL_COAT, 99
+	db BLK_AUGURITE, 99
 	db FLOOR_1F
 	db -1 ; end
 

engine/items/item_effects.asm

@@ -108,6 +108,7 @@ ItemUsePtrTable:
 	dw UnusableItem      ; CITRINE_PASS
 	dw UnusableItem      ; OLD_SEA_MAP
 	dw ItemUseEvoStone   ; UP_GRADE
+	dw ItemUseEvoStone   ; METAL_COAT
 	dw UnusableItem      ; FLOOR_B2F
 	dw UnusableItem      ; FLOOR_B1F
     dw UnusableItem      ; FLOOR_1F

engine/menus/item_descriptions.asm

@@ -196,6 +196,8 @@ ItemDescriptionPointers:
 	text_end
 	text_far _UpGradeDescription
 	text_end
+	text_far _MetalCoatDescription
+	text_end
 	text_far _HM01Description
 	text_end
 	text_far _HM02Description