[#1369] [#1404] Revert back properties for `System.Environment` match .Net API, but add `extern`
[#1369] [#1404] Revert back properties for `System.Environment` match .Net API, but add `extern`

bridgedotnet/Bridge,AndreyZM/Bridge,bridgedotnet/Bridge,AndreyZM/Bridge,AndreyZM/Bridge,AndreyZM/Bridge,bridgedotnet/Bridge,bridgedotnet/Bridge