Add basics of Glacier.

moto/glacier/utils.py

@@ -1,3 +1,6 @@
+import random
+import string
+
 from six.moves.urllib.parse import urlparse
 
 
@@ -12,3 +15,7 @@ def region_from_glacier_url(url):
 
 def vault_from_glacier_url(full_url):
     return full_url.split("/")[-1]
+
+
+def get_job_id():
+    return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(92))