New Package query, add, delete Commands

• Add new commands repo_package_add and repo_package_delete

Add packages to local repository

aptly-cli repo_package_add --name megatronsoftware 'Pamd64 geoipupdate

2.0.0 87f1591307e50817' 'Pi386 geoipupdate 2.0.0 87f1591307e50817'

Delete packages from local repository

aptly-cli repo_package_delete --name megatronsoftware 'Pamd64 geoipupdate 2.0.0 87f1591307e50817' 'Pi386 geoipupdate 2.0.0 87f1591307e50817'

Added package query to cli

aptly-cli repo_package_query --name megatronsoftware -query geoipupdate

Thanks @SHyx0rmZ !