Replace "transformed paths" with "original path"

[tjprescott]

Currently the diff shows the path to the violation in the expanded Swagger. It would be more helpful to users if they also had a path to the actual source of that property. For example if a response property on Foo called bar has a violation, it would be nice to make have both paths:

• Expanded: paths."foo/".get.responses.200.schema.properties.bar
• Original: definitions.Foo.properties.bar

This will make it easier to find the root cause of the violation in the original format.

[tjprescott]

I could probably repurpose the work I've done to propagate suppressions to make this feasible.

The benefits would be:

1. Shorter paths that conform to the actual Swagger
2. Eliminate duplicates in the diff file caused by an issue in source definitions being replicated in expansion