Add option install_dir in config
Add option install_dir in config

Additional to defining installation directory in command line
pakket install --to=/usr/local/pakket
We also can define it in config:

 {
    "repositories" : {
        "spec"   : [ ... ],
        "source" : [ ... ],
        "parcel" : [ ... ]
    },
    "install_dir" : "/usr/local/pakket",
}

xsawyerx/pakket,xsawyerx/pkt,xsawyerx/pakket