Rust implementation of [golang challenge #1](http://golang-challenge.org/go-challenge1).

A simple binary fileformat for a drum machine is given. The task is to reverse
it and implement a decoder it.

## ToDo

- [ ] write example cli that pretty prints the fixture's contents
- [ ] create documentation/tutorial/walkthrough and give it to `nom` community
	- [ ] describt binary format (result of re)
	- [ ] describe implementation steps
	- [ ] maybe add something (tests!?) that allows for better/easier debugging