Improvements to Swagger Parser

[chidozieononiwu]

Swagger parser currently have many cases where it does not grab the data, mostly related to when schema is referenced from other swagger files relative to the root swagger file.
There are also cases where the relative refence is many layers down, i.e reference to a reference. A good test case to identify these situations is https://github.com/Azure/azure-rest-api-specs/blob/main/specification/maps/data-plane/DEM/preview/1.0/elevation.json

Another issue is that arrays are not properly modeled for APIView to render it. We should reconsider how to tokenize array and object within swagger schema.

In the case above the properties of the objects should not be a different row.