Policy Plus - Versioning with Git

For a long time, Policy Plus's Help | About dialog stated that the program had no version number because the project was in early development. The development is no longer so early, and I received a request to release stable binaries, so it seemed like time to add a version system. Since Policy Plus isn't at 1.0 yet, I'm not ready to start issuing normal version numbers. Instead, each Git commit can represent a version. I rigged up a batch file to write the current tag or commit into a file that gets compiled into the program and used to show the version. I then released the May2020 snapshot.