tygr 0.3.0

Define your grammar once as Rust types and get a parser, printer, and EBNF presentation for free.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

## Fixes

Fixes #

## Changes

<!-- Bulleted, verb-led (Added/Fixed/Renamed/Removed/...), like CHANGELOG.md entries -->
-

## Test Plan

-

## Notes

<!-- Other notes to maintainer(s): "Chose X over Y because...", "Follow-up: ...", "Out of scope: ...", "Review focus: ...", "Depends on: ...", "Migration: ..." -->
-