Added support for the "Not" Operator

[aldrickdev]

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What does this PR do?

This PR adds support for the Not Operator when defining the filter for a particular resource.

This was in response to question that was brought up by a Support Engineer where their client asked if the tool supported the the Not operation. This wasn't supported but was determined that it was a useful option to have.

Description of the Change

The change for this was to basically, invert the boolean result that was generated when we compared the default regex (Exact Match) to the resource attribute.

Alternate Designs

Possible Drawbacks

Verification Process

To verify that the change is working as intended, I manually made sure that when using the new operator, that I received the expected results.

I also added additional tests that would confirm that the Not Operator was working as intended. I took all of the tests that verified the filtering behavior and then created inverse versions of them.

Additional Notes

Release Notes

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• Feature or bug fix MUST have appropriate tests (unit, integration, etc...)
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