Pushed some code at avalanche-development/swagger-router-middleware.
- d2e1d31 Model for recursive ref resolution.
- b139088 Possible reference walk method.
- cc4a8f5 Adds mocks for ref resolution calls in invokation.
- 7903f6d Adds tests around lookupReference.
- 21ff0e4 Adds test around ref resolution, plus better lookup.
- 140ab0d Merge pull request #9 from avalanche-development/json-ref-resolution.
