Initial public release

• Created class unmoving::PSXFixed
• Released as open-source MPL-2.0

Another test of build-release

Now includes exact release URL in header front-matter

Testing release-build script

I've got some spiffy automation inf my release-build workflow. Let's test it.

Initial working release with almost fully-tested

• missing tests are proper tests of "advanced" (read: auto-generated copy and move ctors) ctors, beyond just calling them to see if they work