Set workspace baseUrl to settings.BaseUrl when workspace is created from loading entry document

[darrelmiller]

OpenAPI.NET/src/Microsoft.OpenApi/Reader/OpenApiJsonReader.cs

Line 195 in 4fdd0e8

var openApiWorkSpace = new OpenApiWorkspace();

If no baseUrl is provided via settings, use the OpenApiConstants BaseUrl. However, when resolving a file path, if the BaseUrl is equal to the "OpenApiConstant.BaseUrl" then use the current working directory.