get, move, copy, mirror: Added --failed switch which retries failed copies/moves

Note that get --from foo --failed will get things that a previous get --from bar
tried and failed to get, etc. I considered making --failed only retry
transfers from the same remote, but it was easier, and seems more useful,
to not have the same remote requirement.

Noisy due to some refactoring into Types/

Remote/External.hs

@@ -22,7 +22,7 @@ import Remote.Helper.ReadOnly
 import Remote.Helper.Messages
 import Utility.Metered
 import Messages.Progress
-import Logs.Transfer
+import Types.Transfer
 import Logs.PreferredContent.Raw
 import Logs.RemoteState
 import Logs.Web

Remote/External/Types.hs

@@ -34,7 +34,7 @@ module Remote.External.Types (
 import Annex.Common
 import Types.StandardGroups (PreferredContentExpression)
 import Utility.Metered (BytesProcessed(..))
-import Logs.Transfer (Direction(..))
+import Types.Transfer (Direction(..))
 import Config.Cost (Cost)
 import Types.Remote (RemoteConfig)
 import Types.Availability (Availability(..))

Remote/GCrypt.hs

@@ -25,6 +25,7 @@ import Types.Remote
 import Types.GitConfig
 import Types.Crypto
 import Types.Creds
+import Types.Transfer
 import qualified Git
 import qualified Git.Command
 import qualified Git.Config
@@ -47,7 +48,6 @@ import qualified Remote.Directory
 import Utility.Rsync
 import Utility.Tmp
 import Logs.Remote
-import Logs.Transfer
 import Utility.Gpg
 
 remote :: RemoteType

Remote/Helper/Ssh.hs

@@ -20,7 +20,7 @@ import Messages.Progress
 import Utility.Metered
 import Utility.Rsync
 import Types.Remote
-import Logs.Transfer
+import Types.Transfer
 import Config
 
 {- Generates parameters to ssh to a repository's host and run a command.

Remote/Rsync.hs

@@ -34,7 +34,7 @@ import Utility.Rsync
 import Utility.CopyFile
 import Messages.Progress
 import Utility.Metered
-import Logs.Transfer
+import Types.Transfer
 import Types.Creds
 import Annex.DirHashes
 import Utility.Tmp