#### What does this PR do? This PR follows #2748, and should be merged _after_
Included in this PR: `portal` `federations` `steering` I'm splitting the PR to separate the seed migration from the other migration. This was the original PR: #2704 Also, this PR is blocking #2038 #### Which TC components are affected by this PR? Traffic Ops is the only affected component, except the changes only exist in the database and are not used yet functionally. #### What is the best way to verify this PR? Run the migrations, check the summary, and check the contents of the database. #### Check all that apply - [ ] This PR includes tests - [ ] This PR includes documentation updates - [ ] This PR includes an update to CHANGELOG.md - [x] This PR includes all required license headers - [x] This PR does *NOT* fix a serious security flaw. Read more: [www.apache.org/security](http://www.apache.org/security/) <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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. --> [ Full content available at: https://github.com/apache/trafficcontrol/pull/2749 ] This message was relayed via gitbox.apache.org for [email protected]
