Add pre-request log to reannote task

This should allow us to see what files are bogging down the reannotate
task, so that we can ignore them and reannotate manually if necessary

appserver/app.py

@@ -487,6 +487,7 @@ def get_token():
         return json.loads(req.text)['accessToken']['token']
 
     def do_work(token, hash_ids, configs, organism: Fallback):
+        print(f'Sending request for files {hash_ids}...\n')
         resp = requests.post(
             'http://localhost:5000/filesystem/annotations/generate',
             data=json.dumps(