Refactoring HOS folder structure (#771)

* Refactoring HOS folder structure

Refactoring HOS folder structure:

- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close #766 and #753).

* Remove Types namespaces

Ryujinx.HLE/HOS/Services/Ptm/Psm/IPsmServer.cs

@@ -0,0 +1,45 @@
+using Ryujinx.Common.Logging;
+
+namespace Ryujinx.HLE.HOS.Services.Ptm.Psm
+{
+    [Service("psm")]
+    class IPsmServer : IpcService
+    {
+        public IPsmServer(ServiceCtx context) { }
+
+        [Command(0)]
+        // GetBatteryChargePercentage() -> u32
+        public static ResultCode GetBatteryChargePercentage(ServiceCtx context)
+        {
+            int chargePercentage = 100;
+
+            context.ResponseData.Write(chargePercentage);
+
+            Logger.PrintStub(LogClass.ServicePsm, new { chargePercentage });
+
+            return ResultCode.Success;
+        }
+
+        [Command(1)]
+        // GetChargerType() -> u32
+        public static ResultCode GetChargerType(ServiceCtx context)
+        {
+            ChargerType chargerType = ChargerType.ChargerOrDock;
+
+            context.ResponseData.Write((int)chargerType);
+
+            Logger.PrintStub(LogClass.ServicePsm, new { chargerType });
+
+            return ResultCode.Success;
+        }
+
+        [Command(7)]
+        // OpenSession() -> IPsmSession
+        public ResultCode OpenSession(ServiceCtx context)
+        {
+            MakeObject(context, new IPsmSession(context.Device.System));
+
+            return ResultCode.Success;
+        }
+    }
+}