Show tasks in progress for incomplete DBs

Summary:
It's often useful to know what state an fbsource DB is in without
going to the chronos page, and even the chronos page doesn't tell you
which task it is waiting for.

Reviewed By: pepeiborra

Differential Revision: D51613424

fbshipit-source-id: b2bba6275b48bcb3f97e38300480ed4425671aef

glean/client/hs/Glean.hs

@@ -68,6 +68,17 @@ module Glean
   , DatabaseNotIncomplete(..)
   , WrongHandle(..)
   , FactIdRange(..)
+  , Tasks
+  , Task(..)
+  , TaskState(..)
+  , TaskRunning(..)
+  , TaskWaiting(..)
+  , TaskFinished(..)
+  , ParcelState(..)
+  , ParcelRunning(..)
+  , ParcelWaiting(..)
+  , ParcelFinished(..)
+  , GetDatabaseResult(..)
 
   -- * Repositories
   , Repo(..)