* add outline for ECRepairer
* add description of process in TODO comments
* begin download/getting hash for a single piece
* verify piece hash and order limit during download
* fix download piece
* begin filling out ESREpair. Get
* wip move ecclient.Repair to ecrepairer.Repair
* pass satellite signee into repairer
* reconstruct original stripe from pieces
* move rebuildStripe()
* calculate piece size differently, increment successful count
* fix shares slices initialization
* rename stripeData to segment
* do not pad reader in Repair()
* temp debug
* create unsafeRSScheme
* use decode reader
* rename file name to be all lowercase
* make repair downloader async
* declare condition variable inside Get method
* set downloadAndVerifyPiece's in-memory buffer to be share size
* update unusedLimits var
* address comments
* remove unnecessary comments
* move initialization of segmentRepaire to be outside of repairer service
* use ReadAll during download
* remove dots and move hashing to after validating for order limit signature
* wip test
* make sure files exactly at min threshold are repaired
* remove unused code
* use corrput data and write back to storagenode
* only create corrupted node and piece ids once
* add comment
* address nat's comment
* fix linting and checker_test
* update comment
* add comments
* remove "copied from ecclient" comments
* add clarification comments in ec.Repair
