update question plugin to use autoservice
package org.batfish.question;
import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.auto.service.AutoService;
import org.batfish.common.Answerer;
import org.batfish.common.plugin.IBatfish;
+import org.batfish.common.plugin.Plugin;
import org.batfish.datamodel.answers.AnswerElement;
import org.batfish.datamodel.questions.IQuestion;
import org.batfish.datamodel.questions.Question;
import org.batfish.datamodel.questions.smt.EquivalenceType;
+@AutoService(Plugin.class)
public class SmtRoleQuestionPlugin extends QuestionPlugin {
public static class RoleAnswerer extends Answerer {
