Pikchr - Diagram renderer

Taken from the pikchr homepage:

Pikchr (pronounced like "picture") is a PIC-like markup
language for diagrams in technical documentation.  Pikchr is
designed to be embedded in fenced code blocks of
Markdown (or in similar mechanisms in other markup languages)
to provide a convenient means of showing diagrams.

This crate wrappers the pikchr.c version downloaded from that website
on the 23rd August 2023.

You can use it as follows:

use pikchr::{Pikchr, PikchrFlags};

let piccy = Pikchr::render(
    diagram_str,
    None,
    PikchrFlags::default()).unwrap();

println!("{}", piccy);

There is a little helper program that reads a Pikchr file named on the
command line and renders it as SVG to the standard output:

cargo run -p pikchr-cli -q foo.pikchr > foo.svg

You can install it with cargo install pikchr-cli (cargo install --path=pikchr-cli from the source tree).
