mm: Migrate service in Horizon project (#5580)

* mm: Migrate service in Horizon project

This PR migrate the `mm:u` service to the Horizon project, things were checked by some RE aswell, that's why some vars are renamed, the logic should be the same as before.

Tests are welcome.

* Lock _sessionList instead

* Fix comment

* Fix Session fields order

src/Ryujinx.Horizon/Sdk/MmNv/Session.cs

@@ -0,0 +1,26 @@
+namespace Ryujinx.Horizon.Sdk.MmNv
+{
+    class Session
+    {
+        public Module Module { get; }
+        public uint Id { get; }
+        public bool IsAutoClearEvent { get; }
+        public uint ClockRateMin { get; private set; }
+        public int ClockRateMax { get; private set; }
+
+        public Session(uint id, Module module, bool isAutoClearEvent)
+        {
+            Module = module;
+            Id = id;
+            IsAutoClearEvent = isAutoClearEvent;
+            ClockRateMin = 0;
+            ClockRateMax = -1;
+        }
+
+        public void SetAndWait(uint clockRateMin, int clockRateMax)
+        {
+            ClockRateMin = clockRateMin;
+            ClockRateMax = clockRateMax;
+        }
+    }
+}