Myriad of changes!

This is a pretty hefty commit, so let's break it down.
- Fixes Pokedex entries for Bittybat, Bulbasaur, and Shellder.
- ...presumably fixes the options menu.
- Adds a Fishing Group and water wild data to Diglett's Cave, also reduces the encounter rate. More to come.
- Modifies parties, including evolving Rival 2's starter.
- Attempts to fix the Ultra and Safari Balls by making `BallFactor` 4, which appears to be the intended number. Tests yielded positive results.
- Restores a ton of Japanese references that got removed in localisation, including some errors.

engine/menus/main_menu.asm

@@ -127,7 +127,7 @@ MainMenu:
 InitOptions:
 	ld a, TEXT_DELAY_FAST
 	ld [wLetterPrintingDelayFlags], a
-	ld a, TEXT_DELAY_FAST
+	ld a, TEXT_DELAY_FAST ; makes fasttext come up without the need to change settings
 	ld [wOptions], a
 	ret
 
@@ -392,7 +392,7 @@ PrintSaveScreenText:
 	call PrintPlayTime
 	ld a, $1
 	ldh [hAutoBGTransferEnabled], a
-	ld c, 15 ; quicker player stat display
+	ld c, 30
 	jp DelayFrames
 
 PrintNumBadges:
@@ -713,4 +713,4 @@ CheckForPlayerNameInSRAM:
 	ld [MBC1SRamEnable], a
 	ld [MBC1SRamBankingMode], a
 	scf
-	ret
+	ret