Create unique file names instead of overwriting files

Desired Behavior

• Instead of overwriting files or aborting the transfer a unique file name should be generated if a file were already present.
• Example: if file text.txt is already present then the next file name will be text(2).txt and the next text(3).txt and so on.

Proposed Configuration

• This behaviour is be activated by the option CreateUniqueFileNames=true

Maintainer Notes

• This features is not intended for immediate implementation.
• Please vote for this feature and let us know your feedback.