Implement King's Shield move and Stance Change ability

Implement King's Shield move and Stance Change ability; fix fire moves not all thawing and certain fire moves not thawing user

src/data/enums/battler-tag-type.ts

@@ -23,6 +23,7 @@ export enum BattlerTagType {
   MAGMA_STORM = "MAGMA_STORM",
   THUNDER_CAGE = "THUNDER_CAGE",
   PROTECTED = "PROTECTED",
+  KINGS_SHIELD = "KINGS_SHIELD",
   BANEFUL_BUNKER = "BANEFUL_BUNKER",
   BURNING_BULWARK = "BURNING_BULWARK",
   ENDURING = "ENDURING",