Support other switch controller types (#487)

* Make controllers modular, support changing controller type

* return readable events

* signal hid events

* fix style

Ryujinx.HLE/Input/HidControllerId.cs

@@ -0,0 +1,16 @@
+namespace Ryujinx.HLE.Input
+{
+    public enum HidControllerId
+    {
+        CONTROLLER_PLAYER_1 = 0,
+        CONTROLLER_PLAYER_2 = 1,
+        CONTROLLER_PLAYER_3 = 2,
+        CONTROLLER_PLAYER_4 = 3,
+        CONTROLLER_PLAYER_5 = 4,
+        CONTROLLER_PLAYER_6 = 5,
+        CONTROLLER_PLAYER_7 = 6,
+        CONTROLLER_PLAYER_8 = 7,
+        CONTROLLER_HANDHELD = 8,
+        CONTROLLER_UNKNOWN  = 9
+    }
+}