Consider switching to nom for easier parser creation

[linkmauve]

nom is a parser combinator crate which makes parsing binary formats quite easy.

I was thinking about starting a dex parser using it, but your project already exists so it’d be better to just contribute; if you are fine with this new dependency I will try to migrate the existing parsers.

[Razican]

Hi! Actually, this is a great idea, and I feel that the whole crate would be more efficient with nom. Please, feel free to contribute!