Migrate "PhabricatorOwnersPackageCommitRelationship" to "PhabricatorRepositoryAuditRequest"

Summary:
  - Move table to Repository, since we have no Owners joins in the application anymore but would like to do a Repository join.
  - Rename "packagePHID" to "auditorPHID", since this column may contain package, project, or user PHIDs.

Test Plan:
  - Browsed Owners, Audit, and Differential interfaces to the Audit tool.
  - Made comments and state changes.
  - Ran "reparse.php --herald --owners" on several commits.

Reviewers: btrahan, jungejason

Reviewed By: btrahan

CC: aran, epriestley, nh, vrana

Maniphest Tasks: T904

Differential Revision: https://secure.phabricator.com/D1787

resources/sql/patches/114.auditrequest.sql

@@ -0,0 +1,16 @@
+CREATE TABLE phabricator_repository.repository_auditrequest (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  auditorPHID varchar(64) BINARY NOT NULL,
+  commitPHID varchar(64) BINARY NOT NULL,
+  auditStatus varchar(64) NOT NULL,
+  auditReasons LONGBLOB NOT NULL,
+  KEY (commitPHID),
+  KEY (auditorPHID, auditStatus)
+) ENGINE=InnoDB;
+
+INSERT INTO phabricator_repository.repository_auditrequest
+    (auditorPHID, commitPHID, auditStatus, auditReasons)
+  SELECT packagePHID, commitPHID, auditStatus, auditReasons
+    FROM phabricator_owners.owners_packagecommitrelationship;
+
+DROP TABLE phabricator_owners.owners_packagecommitrelationship;