copy: add slug_perm to output

[ThomasAdam]

When using the copy command to copy packages between repositories, the unique ID (slug_perm) of the package wasn't being printed to stdout. As with other commands (such as 'push') which did, the output of this could then be parsed to further operate on the specific package.

Therefore, make the output from 'copy' behave in the same way.

[qlty-cloud-legacy[bot]]

Code Climate has analyzed commit bda37d78 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 0.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 1.2% (0.0% change).

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[lskillen]

Here is an overview of what got changed by this pull request:

Clones removed
==============
+ cloudsmith_cli/cli/commands/copy.py  -1
         

See the complete overview on Codacy