Add ability to specify transferDirectoryMaxConcurrency in S3TransferManager#6329

alextwoods merged 5 commits intoaws:masteraws/aws-sdk-java-v2:masterfrom

AndreKurait:ConfigurableDirectoryTransferMaxConcurrencyAndreKurait/aws-sdk-java-v2:ConfigurableDirectoryTransferMaxConcurrencyCopy head branch name to clipboard