fix: Export GCRuleMaker properly

[danieljbruce]

Description

The export of the GCRuleMaker isn't compatible with all samples formats. These changes in this PR make it so that when users use the require statement they can access the GCRuleMaker.

In particular, the following line of code is needed for these particular samples:

module.exports.GCRuleMaker = GCRuleMaker;

Impact

Makes it so all our users can use the GCRuleMaker

Testing

Found this when investigating samples