Implements a bunch more moves

PkmnLib.Static/Libraries/TypeLibrary.cs

@@ -13,6 +13,11 @@ public interface IReadOnlyTypeLibrary
     /// </summary>
     bool TryGetTypeIdentifier(StringKey key, out TypeIdentifier typeIdentifier);
 
+    /// <summary>
+    /// Gets the type identifier for a type with an index.
+    /// </summary>
+    bool TryGetTypeIdentifierFromIndex(byte index, [MaybeNullWhen(false)] out TypeIdentifier typeIdentifier);
+
     /// <summary>
     /// Gets the effectiveness for a single attacking type against a single defending type.
     /// </summary>
@@ -46,6 +51,18 @@ public class TypeLibrary : IReadOnlyTypeLibrary
         return false;
     }
 
+    /// <inheritdoc />
+    public bool TryGetTypeIdentifierFromIndex(byte index, out TypeIdentifier typeIdentifier)
+    {
+        if (index < 1 || index > _types.Count)
+        {
+            typeIdentifier = default;
+            return false;
+        }
+        typeIdentifier = _types[index - 1];
+        return true;
+    }
+
     /// <inheritdoc />
     public float GetSingleEffectiveness(TypeIdentifier attacking, TypeIdentifier defending)
     {