Create EventType.java (#201)

* Create EventType.java

Make it easier for parsing github events from request header

* Update EventType.java

* Update EventType.java

Author: a4501150

src/main/java/com/spotify/github/v3/activity/events/EventType.java

@@ -0,0 +1,94 @@
+/*-
+ * -\-\-
+ * github-api
+ * --
+ * Copyright (C) 2016 - 2020 Spotify AB
+ * --
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * -/-/-
+ */
+
+package com.spotify.github.v3.activity.events;
+
+public enum EventType {
+  BRANCH_PROTECTION_RULE,
+  CHECK_RUN,
+  CHECK_SUITE,
+  CODE_SCANNING_ALERT,
+  COMMIT_COMMENT,
+  CONTENT_REFERENCE,
+  CREATE,
+  DELETE,
+  DEPLOY_KEY,
+  DEPLOYMENT,
+  DEPLOYMENT_STATUS,
+  DISCUSSION,
+  DISCUSSION_COMMENT,
+  DOWNLOAD,
+  FOLLOW,
+  FORK,
+  FORK_APPLY,
+  GITHUB_APP_AUTHORIZATION,
+  GIST,
+  GOLLUM,
+  INSTALLATION,
+  INSTALLATION_REPOSITORIES,
+  INTEGRATION_INSTALLATION_REPOSITORIES,
+  ISSUE_COMMENT,
+  ISSUES,
+  LABEL,
+  MARKETPLACE_PURCHASE,
+  MEMBER,
+  MEMBERSHIP,
+  MERGE_QUEUE_ENTRY,
+  MERGE_GROUP,
+  META,
+  MILESTONE,
+  ORGANIZATION,
+  ORG_BLOCK,
+  PACKAGE,
+  PAGE_BUILD,
+  PROJECT_CARD,
+  PROJECT_COLUMN,
+  PROJECT,
+  PING,
+  PUBLIC,
+  PULL_REQUEST,
+  PULL_REQUEST_REVIEW,
+  PULL_REQUEST_REVIEW_COMMENT,
+  PULL_REQUEST_REVIEW_THREAD,
+  PUSH,
+  REGISTRY_PACKAGE,
+  RELEASE,
+  REPOSITORY_DISPATCH,
+  REPOSITORY,
+  REPOSITORY_IMPORT,
+  REPOSITORY_VULNERABILITY_ALERT,
+  SCHEDULE,
+  SECURITY_ADVISORY,
+  STAR,
+  STATUS,
+  TEAM,
+  TEAM_ADD,
+  WATCH,
+  WORKFLOW_JOB,
+  WORKFLOW_DISPATCH,
+  WORKFLOW_RUN,
+  UNKNOWN,
+  ALL;
+
+  @Override
+  public String toString() {
+    return this.name().toLowerCase();
+  }
+}