Migrate files from Wox to PowerLauncher (#5014)

* Moved all files from Wox to Powerlauncher

* Removed Wox project

* Changed namespace for imported files

* Resolved errors for VM

* Added build dependency order

* Fixed errors in helper class

* Remove Wox files

* Fixed errors in SingleInstance class

* Fixed wox.tests

* Fixed MSI

* Removed obsolete methods from PublicAPI

* nit fixes

* Throw null exception

* Fix merge conflict

src/modules/launcher/PowerLauncher/Helper/KeyboardHelper.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows.Input;
+using Wox.Plugin;
+
+namespace PowerLauncher.Helper
+{
+    class KeyboardHelper
+    {
+        public static SpecialKeyState CheckModifiers()
+        {
+            SpecialKeyState state = new SpecialKeyState();
+            if ((Keyboard.GetKeyStates(Key.LeftShift) & KeyStates.Down) > 0 ||
+                (Keyboard.GetKeyStates(Key.RightShift) & KeyStates.Down) > 0)
+            {
+                state.ShiftPressed = true;
+            }
+            if ((Keyboard.GetKeyStates(Key.LWin) & KeyStates.Down) > 0 ||
+                (Keyboard.GetKeyStates(Key.RWin) & KeyStates.Down) > 0)
+            {
+                state.WinPressed = true;
+            }
+            if ((Keyboard.GetKeyStates(Key.LeftCtrl) & KeyStates.Down) > 0 ||
+                (Keyboard.GetKeyStates(Key.RightCtrl) & KeyStates.Down) > 0)
+            {
+                state.CtrlPressed = true;
+            }
+            if ((Keyboard.GetKeyStates(Key.LeftAlt) & KeyStates.Down) > 0 ||
+                (Keyboard.GetKeyStates(Key.RightAlt) & KeyStates.Down) > 0)
+            {
+                state.AltPressed = true;
+            }
+            return state;
+        }
+    }
+}