A schedule per location, and locations backed up one after the other

Off, once a day or every N hours from a time, each in its own time zone. Existing locations
keep the time that held for all of them. A backup that has to wait shows as queued, and its
restore point has the time it really began.

appinfo/info.xml

@@ -90,6 +90,7 @@ you need help with restoring a backup after a crash.]]></description>
         <command>OCA\NgBackup\Command\TargetAppendOnly</command>
         <command>OCA\NgBackup\Command\TargetTrustCurrent</command>
         <command>OCA\NgBackup\Command\TargetLimit</command>
+        <command>OCA\NgBackup\Command\TargetSchedule</command>
         <command>OCA\NgBackup\Command\Trash</command>
         <command>OCA\NgBackup\Command\TrashRestore</command>
         <command>OCA\NgBackup\Command\KeySlots</command>

appinfo/routes.php

@@ -25,7 +25,7 @@ return [
 		['name' => 'AdminApi#setTargetLimit', 'url' => '/api/targets/{id}/limit', 'verb' => 'PUT'],
 		['name' => 'AdminApi#startBackup', 'url' => '/api/backups', 'verb' => 'POST'],
 		['name' => 'AdminApi#tick', 'url' => '/api/tick', 'verb' => 'POST'],
-		['name' => 'AdminApi#setSchedule', 'url' => '/api/schedule', 'verb' => 'PUT'],
+		['name' => 'AdminApi#setTargetSchedule', 'url' => '/api/targets/{id}/schedule', 'verb' => 'PUT'],
 		['name' => 'AdminApi#snapshots', 'url' => '/api/targets/{targetId}/snapshots', 'verb' => 'GET'],
 		['name' => 'AdminApi#setSnapshotNote', 'url' => '/api/targets/{targetId}/snapshots/{snapshotId}/note', 'verb' => 'PUT'],
 		['name' => 'AdminApi#setSnapshotPinned', 'url' => '/api/targets/{targetId}/snapshots/{snapshotId}/pin', 'verb' => 'PUT'],