Reshaping repo
The repo is designed for use with an existing builds.sr.ht service.
Besides lacking that, I am more interested in a containerized workflow
powered by a Makefile. Package source code will live in `pkgsrc/`,
packages will be built into `pkg/`, and packaging keys will be
generated into `keys/`.
Alos trimmed the packages down to what I will build.
py3-*: bump pkgrel for python rebuild
py3-*: bump pkgrel and update upstream versions
Update all non-sr.ht Python packages
py3-intervals: upgrade to 0.9.1
py3-intervals: bump pkgrel
sr.ht/py3-intervals: bump pkgrel
Update all dependency packages
Move into subdir for abuild reasons
Add py3-sqlalchemy-utils and friends