Added command to copy package entry between manifests.
Added command to copy package entry between manifests.

evertrue/deb-s3,alexmreis/deb-s3,krobertson/deb-s3,madebymany/deb-s3,madebymany/deb-s3,murillodigital/deb-s3,evertrue/deb-s3,alexmreis/deb-s3,DataDog/deb-s3,krobertson/deb-s3,jjshoe/deb-s3,jjshoe/deb-s3,DataDog/deb-s3,murillodigital/deb-s3