Use PhutilConsoleProgressBar for the repository/reparse.php script

Summary: The output from this script is too verbose... all that I care about is the overall progress.

Test Plan:
Ran the script on a large repository.

```lang=bash
./scripts/repository/reparse.php --all XYZ --message
NOTE: This script will queue tasks to reparse the data. Once the tasks have been queued, you need to run Taskmaster daemons to execute them.

QUEUEING TASKS (92,969 Commits):
[                                                                  ]   0.1%
```

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D10441

Author: joshuaspence

scripts/repository/reparse.php

@@ -218,6 +218,9 @@
   echo "QUEUEING TASKS (".number_format(count($commits))." Commits):\n";
 }
 
+$progress = new PhutilConsoleProgressBar();
+$progress->setTotal(count($commits));
+
 $tasks = array();
 foreach ($commits as $commit) {
   $classes = array();
@@ -271,20 +274,18 @@
         $class,
         $spec,
         PhabricatorWorker::PRIORITY_IMPORT);
-
-      $commit_name = 'r'.$callsign.$commit->getCommitIdentifier();
-      echo "  Queued '{$class}' for commit '{$commit_name}'.\n";
     }
   } else {
     foreach ($classes as $class) {
       $worker = newv($class, array($spec));
-      echo "Running '{$class}'...\n";
       $worker->executeTask();
     }
   }
+
+  $progress->update(1);
 }
 
-echo "\nDone.\n";
+$progress->done();
 
 function usage($message) {
   echo phutil_console_format(