This change implements an improved "set build" utility through the "october:version" Artisan command that, instead of checking the October CMS server for the latest build, checks the module files against a source manifest kept on GitHub.
This check allows us to accurately determine the build based on the module files in the October CMS installation, and can even detect versions if the module files are modified (except in the cases of extreme modification).
An additional utility has been implemented, "october:manifest", which will build the manifest JSON file in order to provide the maintainers with a way of generating this manifest file as required.
Replaces #4615.