Maximise DVs, WRAM fix..?

Implements a fix with the WRAM stack space that pret mentioned.

DVs should be forced to max with the changes I added, will need testing.

README.md

@@ -28,6 +28,7 @@ Improved areas
 
 QoL Enhancements
 ====
+- DVs are erased and replaced with perfect 15s. 
 - PC added to Celadon Hotel where the invisible event usually is. Why not?
 - Artificial Save Delay has been removed.
 - Japanese event moves can now be taught via TM/HM;

constants/battle_constants.asm

@@ -66,9 +66,9 @@ DEF SLP_MASK EQU %111 ; 0-7 turns
 
 DEF MAX_STAT_VALUE EQU 999
 
-; trainer dvs
-DEF ATKDEFDV_TRAINER EQU $98
-DEF SPDSPCDV_TRAINER EQU $88
+; trainer dvs, these should be set to 15.
+DEF ATKDEFDV_TRAINER EQU $FF
+DEF SPDSPCDV_TRAINER EQU $FF
 
 ; wPlayerBattleStatus1 or wEnemyBattleStatus1 bit flags
 	const_def

engine/battle/core.asm

@@ -6150,10 +6150,9 @@ LoadEnemyMonData:
 	ld b, SPDSPCDV_TRAINER
 	jr z, .storeDVs
 ; random DVs for wild mon
-	call BattleRandom
-	ld b, a
-	call BattleRandom
-.storeDVs
+	ld a, ATKDEFDV_TRAINER
+	ld b, SPDSPCDV_TRAINER
+	jr z, .storeDVs
 	ld hl, wEnemyMonDVs
 	ld [hli], a
 	ld [hl], b

ram/wram.asm

@@ -2328,5 +2328,5 @@ wBoxDataEnd::
 SECTION "Stack", WRAM0
 
 ; the stack grows downward
-	ds $7D5 - 1
+	ds $FE - 1
 wStack:: db