Provide LaunchDarkly application info (#3435)

* Upgrade to SDK v8

* Provide application properties

* Test adjustments

* Clean up tests

* Ensure project name is set

* Add a 'v' for Git tagging support

src/Core/Settings/IGlobalSettings.cs

@@ -8,6 +8,7 @@ public interface IGlobalSettings
     bool SelfHosted { get; set; }
     bool UnifiedDeployment { get; set; }
     string KnownProxies { get; set; }
+    string ProjectName { get; set; }
     bool EnableCloudCommunication { get; set; }
     string LicenseDirectory { get; set; }
     string LicenseCertificatePassword { get; set; }