Add more information to site details

We keep working in the Site Details functionality, that will allow us to have up to date details about sites, such as the list of plugins and their versions, whether VIP Search is enabled, Jetpack connection status…

This adds some more fields, namely the information about Jetpack (version, active status, Jetpack id, active modules). In the future, all these will be stored and be accessible to run actions on them. E.g, easily find all sites that have a certain old Jetpack version that needs upgrading.

https://github.com/Automattic/vip-go-mu-plugins/pull/1923

#mu-plugins #site-details