Inline software keyboard without input pop up dialog (#2180)

* Initial implementation

* Refactor dynamic text input keys out to facilitate configuration via UI

* Fix code styling

* Add per applet indirect layer handles

* Remove static functions from SoftwareKeyboardRenderer

* Remove inline keyboard reset delay

* Remove inline keyboard V2 responses

* Add inline keyboard soft-lock recovering

* Add comments

* Forward accept and cancel key names to the keyboard and add soft-lock prevention line

* Add dummy window to handle paste events

* Rework inline keyboard state machine and graphics

* Implement IHostUiHandler interfaces on headless WindowBase class

* Add inline keyboard assets

* Fix coding style

* Fix coding style

* Change mode cycling shortcut to F6

* Fix invalid calc size error in games using extended calc

* Remove unnecessary namespaces

Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/KeyboardInputMode.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
+{
+    /// <summary>
+    /// Active input options set by the keyboard applet. These options allow keyboard
+    /// players to input text without conflicting with the controller mappings.
+    /// </summary>
+    enum KeyboardInputMode : uint
+    {
+        ControllerAndKeyboard,
+        KeyboardOnly,
+        ControllerOnly,
+        Count,
+    }
+}