Consider replacing PackageGenerator.php with the Sugar Module Packager

[lschaefer-sugarcrm]

Enrico has moved the module packaging logic into it’s own separate composer package. It’s based on the same pack.php we’ve been using.

https://github.com/esimonetti/sugar-module-packager

https://github.com/esimonetti/SugarModulePackagerSample

There’s something we could probably learn or leverage here to improve how we build ProfM.

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If we remove PackageGenerator, we should also remove the associated unit tests and doc.