rename RNG to Random

also fix 'Far' naming scheme for BattleRandom

this was a long time coming

stats/battle_tower.asm

@@ -15,7 +15,7 @@ Function1f8000: ; 1f8000
 	ld a, [hRandomAdd]
 	ld b, a
 .asm_1f8022
-	call RNG
+	call Random
 	ld a, [hRandomAdd]
 	add b
 	ld b, a
@@ -83,7 +83,7 @@ Function1f8081: ; 1f8081
 	ld a, [hRandomAdd]
 	ld b, a
 .asm_1f8099
-	call RNG
+	call Random
 	ld a, [hRandomAdd]
 	add b
 	ld b, a

stats/odd_eggs.asm

@@ -1,7 +1,7 @@
 GiveOddEgg: ; 1fb4b6
 
 ; Figure out which egg to give.
-	call RNG
+	call Random
 	ld hl, .Probabilities
 	ld c, 0
 	ld b, c

stats/wild/fish.asm

@@ -39,7 +39,7 @@ Fish: ; 9241a
 ; Fish for monsters with rod b from encounter data in FishGroup at hl.
 ; Return monster e at level d.
 
-	call RNG
+	call Random
 
 ; Got a bite?
 	cp [hl]
@@ -59,7 +59,7 @@ Fish: ; 9241a
 	ld l, a
 	
 ; Encounter chance for this monster:
-	call RNG
+	call Random
 	
 .CheckEncounter
 	cp [hl]