Plugins - Added RequiresAdmin boolean

Utilities - Simplified shutdown method signature
Utilities - Added restart method with option to elevate
Core - Moved actual shutdown/restart logic to UI

src/Artemis.Core/Constants.cs

@@ -108,6 +108,6 @@ namespace Artemis.Core
             typeof(float),
             typeof(double),
             typeof(decimal)
-        };
+        };  
     }
 }