Keep track of the positions of comments

[ruckustboom]

In TOML, when you parse the following

# I'm just messing around with it
title = "TOML Example" # This comment comes at the end of the line

It doesn't keep track of where the comments came from, so rendering it back out results in

# I'm just messing around with it
# This comment comes at the end of the line
title = "TOML Example"

It would be cool if it could keep track of where the comment came from and render it accordingly.

Tested with 3.0.1

[TheElectronWill]

With the modified comment storage that I explained in issue #29 this would be possible :-)

Right now I'm in holidays without my computer, but I'll look at it when I'll come back.