To add users, groups, and memberships to the filesystem

This example demonstrates how to:

1. Add user "nvidia2" with identifier "1001" and password "driveos".
2. Add group "automotive" with identifier "2001".
3. Assign membership between user "nvidia2" and group "automotive".

{
    "Users": {
        "one": {
            "UID": "1001",
            "Username" : "nvidia2",
            "Password": "driveos"
        }
    },
    "Groups": {
        "one": {
            "Groupname": "automotive",
            "GID": "2001"
        }
    },
    "Memberships":
    {
        "nvidia2":
        [
            "automotive"
        ]
    }
}