Fixed to work with the new NVIDIA site design

[terellison]

Problem

The site's design was changed to a flow like this:

• User provides GPU and OS info
• A new API call is made with a driver download ID parameter to fetch the details of the update for both the studio and Game Ready drivers
• A pre-loaded HTML template is filled in with the details and rendered
• The user selects either the Game Ready or Studio driver and is then taken to the actual download page

Changes

• UpdateFinder mimics this flow by calling the original API to get the list of updates for the GPU, and using the update number to call the new API to get the details
• Parsing less HTML since the new details API call returns JSON :)
• Added support for RTX 4070

Misc

• Fixed obsolete .NET API calls
• Suppressed platform warnings