am: Implement common web applets (#1188)

* am: Implemnet common web applets

This implement parsing of input and output of web applets while making
those close directly.

TODO for the future: Use and hook a web browser.

* Address Ac_K's comments

Ryujinx.HLE/HOS/Applets/Browser/ShimKind.cs

@@ -0,0 +1,13 @@
+namespace Ryujinx.HLE.HOS.Applets.Browser
+{
+    public enum ShimKind : uint
+    {
+        Shop = 1,
+        Login,
+        Offline,
+        Share,
+        Web,
+        Wifi,
+        Lobby
+    }
+}