Add EnumAdapter for serialization and deserialization

Introduces a generic adapter to handle conversion between enums and string tags for NBT data. This ensures seamless serialization and deserialization of enums while maintaining type safety and readability.

nbt/src/main/java/core/nbt/serialization/adapter/EnumAdapter.java

@@ -0,0 +1,29 @@
+package core.nbt.serialization.adapter;
+
+import core.nbt.serialization.ParserException;
+import core.nbt.serialization.TagAdapter;
+import core.nbt.serialization.TagDeserializationContext;
+import core.nbt.serialization.TagSerializationContext;
+import core.nbt.tag.StringTag;
+import core.nbt.tag.Tag;
+import org.jspecify.annotations.NonNull;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public class EnumAdapter<T extends Enum<T>> implements TagAdapter<T> {
+    private final Class<T> enumClass;
+
+    public EnumAdapter(Class<T> enumClass) {
+        this.enumClass = enumClass;
+    }
+
+    @Override
+    public @NonNull T deserialize(Tag tag, TagDeserializationContext context) throws ParserException {
+        return Enum.valueOf(this.enumClass, tag.getAsString());
+    }
+
+    @Override
+    public Tag serialize(T object, TagSerializationContext context) throws ParserException {
+        return new StringTag(object.name());
+    }
+}