Added nugetV3 detection for index.json
Added nugetV3 detection for index.json

baronfel/Paket,thinkbeforecoding/Paket,fsprojects/Paket,baronfel/Paket,inosik/Paket,thinkbeforecoding/Paket,thinkbeforecoding/Paket,fsprojects/Paket,inosik/Paket,thinkbeforecoding/Paket