Manages dotfiles with stow and make.

Make targets:

 * `console`: configs for os-independent cli tools
 * `fedora-packages`: install rpmfusion and fedora packages (standalone, should
   only need to be run once unless new packages or repos are added)
 * `fedora`: configs for fedora-specific gui tools (depends on `console`)
 * `restore`: restore committed versions of files in `stow\` and `sway-de/`

Note: Stow is run with the `--adopt` option (see [Invoking
Stow](https://www.gnu.org/software/stow/manual/html_node/Invoking-Stow.html).
You can do a `git diff` to see the differences and if you don't care about them
you can quickly revert to the committed versions with `make restore`. Makefile
will do it's best to abort if there are uncommitted changes in the repo.