This allows us to load them via doom-require. Why not use normal
features? Because Doom's libraries are designed to be loaded as part of
Doom, and will openly rely on Doom state if needed; this is a contract I
want to enforce by ensuring their only entry points are through
`doom-require` or autoloading.
I will add them to the rest of the libraries later.
Site-node: this also adds Commentary+Code to the comment headings, as I
want a space to use that space to describe the library, when I get
around to it.
