Groundwork for Garnet Cavern

Currently just uses the RG Unknown Dungeon map, which should be changed accordingly. The warps and stuff outside of basic entry aren't implemented.

Has a halved encounter rate compared to other maps, which matches the idea that caverns don't sustain much wildlife.

Mt Moon theme may not be used in the final product.

data/maps/objects/CitrineCity.asm

@@ -6,6 +6,7 @@ CitrineCity_Object:
 	warp_event  9, 17, CITRINE_TRADEBACK_HOUSE, 1
 	warp_event 15, 17, CITRINE_POKECENTER, 1
 	warp_event 15, 27, CITRINE_MART, 1
+	warp_event 22,  5, GARNET_CAVERN_1F, 1
 
 	def_bg_events
 

data/maps/objects/GarnetCavern1F.asm

@@ -0,0 +1,12 @@
+GarnetCavern1F_Object:
+	db $03 ; border block
+
+	def_warp_events
+	warp_event 24, 17, CITRINE_CITY, 5
+	warp_event 25, 17, CITRINE_CITY, 5
+
+	def_bg_events
+
+	def_object_events
+
+	def_warps_to GARNET_CAVERN_1F

data/maps/objects/GarnetCavernB1F.asm

@@ -0,0 +1,11 @@
+GarnetCavernB1F_Object:
+	db $03 ; border block
+
+	def_warp_events
+	warp_event  4, 11, CITRINE_CITY, 1
+
+	def_bg_events
+
+	def_object_events
+
+	def_warps_to GARNET_CAVERN_B1F

data/maps/objects/GarnetCavernB2F.asm

@@ -0,0 +1,11 @@
+GarnetCavernB2F_Object:
+	db $03 ; border block
+
+	def_warp_events
+	warp_event  4, 11, CITRINE_CITY, 1
+
+	def_bg_events
+
+	def_object_events
+
+	def_warps_to GARNET_CAVERN_B2F

data/maps/objects/SilphCoElevator.asm

@@ -2,8 +2,8 @@ SilphCoElevator_Object:
 	db $f ; border block
 
 	def_warp_events
-	warp_event  1,  3, UNUSED_MAP_ED, 1
-	warp_event  2,  3, UNUSED_MAP_ED, 1
+	;warp_event  1,  3, UNUSED_MAP_ED, 1
+	;warp_event  2,  3, UNUSED_MAP_ED, 1
 
 	def_bg_events
 	bg_event  3,  0, 1 ; SilphCoElevatorText1