Response code and typos on SOL002/VNFConfiguration-API/Configuration.robot

When executing VNFConfiguration-API/Configuration.robot the Keyword Check HTTP Response Status Code Is fails with the following message: Resolving variable '${response.status_code}' failed: AttributeError: 'str' object has no attribute 'status_code'

There is also a typo in the files. The folder containing jsons is named jsons in the repo, but refered as json in the file. FileNotFoundError: [Errno 2] No such file or directory: 'testsuites/VNFConfiguration-API/json/vnfConfigModifications.json'

Edited Feb 21, 2019 by Giacomo Bernini

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