RFC Graph

How the rfc are referencing each other ?

```sh $> cargo run -- -h rfc-graph 0.1.0

USAGE: rfc-graph [OPTIONS] --root

OPTIONS: -h, --help Print help information --recursion-max Number of recursive iteration max [default: 2] --root Number of the first rfc page in the graph (root) -V, --version Print version information ```

Output generated:

• cache.json : a HashMap<i32, Vec<i32>> with key is the rfc source and values are the rfc referenced
• input.dot : a representation of the graph generated following the dot format by graphviz
• output.svg : a svg version of the dot graph

sh $> cargo run -- --root 5322 --recursion-max 1

sh $> cargo run -- --root 5322 --recursion-max 2

The referencing in the rfcs are exponential, so you might not want to run with --recursion-max 4

Next features

I would like to add the following features :

• display the title of the rfc
• show the status following this legend :

| Status | Color | | --------------------------------- | ------------------------------------------------------------- | | Unknown |      | | Draft |      | | Informational |      | | Experimental |      | | Best Common Practice |      | | Proposed Standard |      | | Draft Standard (old designation) |      | | Internet Standard |      | | Historic |      | | Obsolete |      |