Add RuneType enum and DamageType.ANTISIEGE

RuneType covers the rune_type values in the client cache data
(CLASS, DISCIPLINE, RACE, TALENT). ANTISIEGE matches the
combat_attack_resist key in the cache data.

RuneTemplate.rune_type and combat_attack_resist on both cache
templates now use these enums.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/parsers/objects/RuneTemplate.java

@@ -59,7 +59,7 @@ public class RuneTemplate {
 
     public float combat_health_current;
     public float combat_health_full;
-    public final LinkedHashMap<String, Float> combat_attack_resist = new LinkedHashMap<>();
+    public final EnumMap<mbEnums.DamageType, Float> combat_attack_resist = new EnumMap<>(mbEnums.DamageType.class);
     public JSONArray combat_powers;
 
     // item_
@@ -109,7 +109,7 @@ public class RuneTemplate {
 
     // rune_
 
-    public String rune_type;
+    public mbEnums.RuneType rune_type;
     public String rune_sub_type;
 
     // A handful of runes carry a number instead of a name in rune_sub_type.