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.UI/Screens/Settings/Debug/DebugView.xaml

@@ -40,6 +40,8 @@
                         </StackPanel>
                     </Button>
                     <Button Content="Force garbage collection" Command="{s:Action ForceGarbageCollection}" />
+                    <Button Content="Elevate permissions" Command="{s:Action Elevate}" />
+                    <Button Content="Restart" Command="{s:Action Restart}" />
                 </StackPanel>
             </materialDesign:PopupBox>
         </mde:AppBar>

src/Artemis.UI/Screens/Settings/Debug/DebugViewModel.cs

@@ -43,5 +43,15 @@ namespace Artemis.UI.Screens.Settings.Debug
             GC.WaitForPendingFinalizers();
             GC.Collect();
         }
+
+        public void Elevate()
+        {
+            Core.Utilities.Restart(true, TimeSpan.FromMilliseconds(500));
+        }
+
+        public void Restart()
+        {
+            Core.Utilities.Restart(false, TimeSpan.FromMilliseconds(500));
+        }
     }
 }