No MacOS XCode environments are targeted in the continuous integration setup

[louis-langholtz]

Expected/Desired Behavior or Experience:

The continuous integration setup for this project includes at least one Mac OS XCode build target and that's reflected in the macOS XCode Continuous Integration Status badges shown from the top-level README.md file.

Actual Behavior:

The Continuous Integration Status badge for macOS XCode shows "build: unknown" and none of the CI setup is setup for that target.