Walking Wake and the Guardian Beast!

- Added preliminary data for Walking Wake and the new Legendary Pokemon Shi-Shi.
- Changed Bellignan's dex entry to reference how Sprout Tower was constructed.
- Changed some dialogue in Sprout Tower to reflect this.

Wake sprite by EyeDonutz
Shi-Shi sprite by me, but still unfinished. Will definitely rework sometime.

data/pokemon/dex_order_new.asm

@@ -245,6 +245,7 @@ NewPokedexOrder:
 	dw RAIKOU
 	dw ENTEI
 	dw SUICUNE
+	dw WALKING_WAKE
 	dw DRATINI
 	dw DRAGONAIR
 	dw DRAGONITE
@@ -253,6 +254,7 @@ NewPokedexOrder:
 	dw TYRANITAR
 	dw LUGIA
 	dw HO_OH
+	dw SHI_SHI
 	dw MEWTWO
 	dw MEW
 	dw CELEBI