Upgrade to 51Degrees v3

Merged changes from Damian Brooks @brooksyd2

7.2 support and updated package format (.update instead of .zip)

Now built as an .update package (to be installed via /sitecore/admin/UpdateInstallationWizard.aspx)

7.1 support & updated FiftyOne.Foundation data file

Rules moved to the new folder structure in 7.1
Updated device detection data file