add pfx2as subcommand for bulk prefix-to-as lookup

[digizeph]

Usage

Bulk prefix-to-AS mapping lookup with the pre-generated data file

Usage: monocle pfx2as [OPTIONS] <INPUT>...

Arguments:
  <INPUT>...  IP prefixes or prefix files (one prefix per line)

Options:
      --data-file-path <DATA_FILE_PATH>
          Prefix-to-AS mapping data file location [default: https://data.bgpkit.com/pfx2as/pfx2as-latest.json.bz2]
      --debug
          Print debug information
  -e, --exact-match
          Only matching exact prefixes. By default, it does longest-prefix matching
      --json
          Output as JSON objects
  -h, --help
          Print help
  -V, --version
          Print version

➜  cargo run --release -- pfx2as 1.1.1.0/24 8.8.8.0/24 --json
[
  {
    "origin": 13335,
    "prefix": "1.1.1.0/24"
  },
  {
    "origin": 15169,
    "prefix": "8.8.8.0/24"
  }
]