Making Spontaneous spell book properly clone-able through Object -> JSON -> Object cloning.

src/main/lombok/org/leumasjaffe/charsheet/model/magic/impl/Spontaneous.java

@@ -19,7 +19,7 @@ import lombok.experimental.NonFinal;
 @AllArgsConstructor @Getter
 @FieldDefaults(level=AccessLevel.PRIVATE, makeFinal=true)
 public class Spontaneous extends DDSpellbook {
-	@AllArgsConstructor
+	@AllArgsConstructor @Getter
 	@FieldDefaults(level=AccessLevel.PRIVATE, makeFinal=true)
 	private static class Level {
 		@NonNull List<DDSpell> spellsKnown;