Look into new dotfiles structure

[yannickperrenet]

Currently I have spread the configuration over different git repositories:

• .config
• .local/bin

And there is potential for:

• .opt to contain some git submodules

Things to consider:

• Bare git repository. Although I am not sure what the setup script would look like in this case, since the new setup should easily be able to add things to the repo.
• Somewhat error prone as I don't want to accidentally have my entire home folder under git.

[yannickperrenet]

Moved to a bare git repository in https://github.com/yannickperrenet/dotfiles/commit/4e4c6097fb1fe633c76ed2933c19ea63acf7c290.