Add "retry" option for refreshes when they fail

The use case is large data in Dataflows where Incremental Refresh is used. The refresh of a partition can fail with a "DirectQueryUnexpectedEndOfStream" error, which is I suppose where the SQL engine just dies due to capacity overload. When hydrating large models with many partitions with Te/3, if I refresh partitions A, B, C and D, and if B fails for any reason, B is empty and C & D don't run at all. I'd like an option to allow up to 3 "retries" (configurable in Preferences) so when B fails, TE/3 will report it, but simply restart it and continue on. It would be for any refresh issues, I just bring up the real world use case I experience.