HID SharedMem Rework (#1003)

* Delete old HLE.Input

* Add new HLE Input.

git shows Hid.cs as modified because of the same name. It is new.

* Change HID Service

* Change Ryujinx UI to reflect new Input

* Add basic ControllerApplet

* Add DebugPad

Should fix Kirby Star Allies

* Address Ac_K's comments

* Moved all of HLE.Input to Services.Hid
* Separated all structs and enums each to a file
* Removed vars
* Made some naming changes to align with switchbrew
* Added official joycon colors

As an aside, fixed a mistake in touchscreen headers and added checks to
important SharedMem structs at init time.

* Further address Ac_K's comments

* Addressed gdkchan's and some more Ac_K's comments

* Address AcK's review comments

* Address AcK's second review comments

* Replace missed Marshal.SizeOf and address gdkchan's comments

Ryujinx.HLE/HOS/Services/Hid/HidDevices/TouchDevice.cs

@@ -0,0 +1,46 @@
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Hid
+{
+    public class TouchDevice : BaseDevice
+    {
+        public TouchDevice(Switch device, bool active) : base(device, active) { }
+
+        public void Update(params TouchPoint[] points)
+        {
+            ref ShMemTouchScreen touchscreen = ref _device.Hid.SharedMemory.TouchScreen;
+
+            int currentIndex = UpdateEntriesHeader(ref touchscreen.Header, out int previousIndex);
+
+            if (!Active)
+            {
+                return;
+            }
+
+            ref TouchScreenState currentEntry = ref touchscreen.Entries[currentIndex];
+            TouchScreenState previousEntry = touchscreen.Entries[previousIndex];
+
+            currentEntry.SampleTimestamp = previousEntry.SampleTimestamp + 1;
+            currentEntry.SampleTimestamp2 = previousEntry.SampleTimestamp2 + 1;
+
+            currentEntry.NumTouches = (ulong)points.Length;
+
+            int pointsLength = Math.Min(points.Length, currentEntry.Touches.Length);
+
+            for (int i = 0; i < pointsLength; ++i)
+            {
+                TouchPoint pi = points[i];
+                currentEntry.Touches[i] = new TouchScreenStateData
+                {
+                    SampleTimestamp = currentEntry.SampleTimestamp,
+                    X = pi.X,
+                    Y = pi.Y,
+                    TouchIndex = (uint)i,
+                    DiameterX = pi.DiameterX,
+                    DiameterY = pi.DiameterY,
+                    Angle = pi.Angle
+                };
+            }
+        }
+    }
+}