Add missing "oauth_server_edge" tables

Summary: Fixes T10975. The "scramble attached file permissions when an object is saved" code is misfiring here too. See T10778 + D15803 for prior work.

Test Plan:
  - Ran `bin/storage upgrade -f`.
  - Edited the view policy of an OAuth server (prepatch: fatal; postpatch: worked great).

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10975

Differential Revision: https://secure.phabricator.com/D15938

src/applications/oauthserver/query/PhabricatorOAuthServerSchemaSpec.php

@@ -0,0 +1,10 @@
+<?php
+
+final class PhabricatorOAuthServerSchemaSpec
+  extends PhabricatorConfigSchemaSpec {
+
+  public function buildSchemata() {
+    $this->buildEdgeSchemata(new PhabricatorOAuthServerClient());
+  }
+
+}