NewUploadable builds the Uploadable from the given information.

NewUploadQueue builds an UploadQueue, allowing `workers` concurrent uploads.

ScanIndex returns a slice of wrappedPointer objects for all Git LFS pointers it finds in the index.

ScanRefs takes a ref and returns a slice of wrappedPointer objects for all Git LFS pointers it finds for that ref.

Uploadable describes a file that can be uploaded.

UploadQueue provides a queue that will allow concurrent uploads.