Code style fixes and nits on the HLE project (#355)

* Some style fixes and nits on ITimeZoneService

* Remove some unneeded usings

* Remove the Ryujinx.HLE.OsHle.Handles namespace

* Remove hbmenu automatic load on process exit

* Rename Ns to Device, rename Os to System, rename SystemState to State

* Move Exceptions and Utilities out of OsHle

* Rename OsHle to HOS

* Rename OsHle folder to HOS

* IManagerDisplayService and ISystemDisplayService style fixes

* BsdError shouldn't be public

* Add a empty new line before using static

* Remove unused file

* Some style fixes on NPDM

* Exit gracefully when the application is closed

* Code style fixes on IGeneralService

* Add 0x prefix on values printed as hex

* Small improvements on finalization code

* Move ProcessId and ThreadId out of AThreadState

* Rename VFs to FileSystem

* FsAccessHeader shouldn't be public. Also fix file names casing

* More case changes on NPDM

* Remove unused files

* Move using to the correct place on NPDM

* Use properties on KernelAccessControlMmio

* Address PR feedback

1 files changed, 50 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Spl/IRandomInterface.cs b/Ryujinx.HLE/HOS/Services/Spl/IRandomInterface.cs
new file mode 100644
index 00000000..6391d981
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Spl/IRandomInterface.cs
@@ -0,0 +1,50 @@
+using Ryujinx.HLE.HOS.Ipc;
+using System;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+
+namespace Ryujinx.HLE.HOS.Services.Spl
+{
+    class IRandomInterface : IpcService, IDisposable
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        private RNGCryptoServiceProvider Rng;
+
+        public IRandomInterface()
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                { 0, GetRandomBytes }
+            };
+
+            Rng = new RNGCryptoServiceProvider();
+        }
+
+        public long GetRandomBytes(ServiceCtx Context)
+        {
+            byte[] RandomBytes = new byte[Context.Request.ReceiveBuff[0].Size];
+
+            Rng.GetBytes(RandomBytes);
+
+            Context.Memory.WriteBytes(Context.Request.ReceiveBuff[0].Position, RandomBytes);
+
+            return 0;
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        protected virtual void Dispose(bool Disposing)
+        {
+            if (Disposing)
+            {
+                Rng.Dispose();
+            }
+        }
+    }
+}
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