Replace all raw string comparisons with StringKey, source generator that creates cache keys for all names for Gen7 plugin

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/Soak.cs

@@ -6,7 +6,7 @@ public class Soak : Script, IScriptOnSecondaryEffect
     /// <inheritdoc />
     public void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
     {
-        if (target.ActiveAbility?.Name == "multitype")
+        if (target.ActiveAbility?.Name == AbilityNames.Multitype)
         {
             move.GetHitData(target, hit).Fail();
             return;
@@ -14,7 +14,7 @@ public class Soak : Script, IScriptOnSecondaryEffect
 
         var typeLibrary = move.Battle.Library.StaticLibrary.Types;
         // If water type is not found, we can't do anything.
-        if (!typeLibrary.TryGetTypeIdentifier("water", out var waterType))
+        if (!typeLibrary.TryGetTypeIdentifier(TypeNames.Water, out var waterType))
             return;
 
         target.SetTypes([waterType]);