We still need to include <lol/format> because of platforms that do not have full
C++20 support such as the N******* S*****.

A lot more removals are coming. I’m thinking merging the Application and
ApplicationDisplay classes, as well as removing the corresponding -Data
classes.

I would like lol::image to be accessible in the header-only section of
the framework, which means rethinking the locking mechanism and the way
codecs are exposed to the image class.

Unfortunately, easymesh code still relies heavily on its specifics, so I’m
letting it live as lol::easy_array for the near future. But it’s going away.