reuse tokens from toml crate about toml HOT 2 CLOSED

Currently, toml_edit's parser (https://github.com/ordian/toml_edit/tree/master/src/parser) operates on &str(https://github.com/ordian/toml_edit/blob/107868f14ec304e85d5545300fe74dc6a52c27df/src/parser/macros.rs#L9), but we would like to reuse the token module from toml-rs by making it public (pub mod tokens; in lib.rs in toml-rs) and then rewriting our parser to operate on tokens instead of &str (see an example of combine-based parser on tokens here, in particular combine::{StreamOnce, Positioned, Resetable} impl for tokens)

from toml.

I think we can close this out at this point now that cargo has switched exclusively to toml_edit

from toml.