Add lakectl cp

[arielshaqed]

The lakeFS API supports copyObject. lakectl could also support operating this API.

Suggested syntax:

$ lakectl fs cp lakefs://repo/branch/source lakefs://repo/branch/some/dest

[FadilaKhadar]

@arielshaqed May I give it a try?

[arielshaqed]

@arielshaqed May I give it a try?

Sure, please do! contributing.md contains some information on how to get started developing lakeFS.

[idanovo]

Hi @FadilaKhadar , are you still working on this?