[WIP] Add support for events (#60)

* Add support for events, move concept of domains to IpcService

* Support waiting for KThread, remove some test code, other tweaks

* Use move handle on NIFM since I can't test that now, it's better to leave it how it was

Ryujinx.Core/OsHle/GlobalStateTable.cs

@@ -0,0 +1,62 @@
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+
+namespace Ryujinx.Core.OsHle
+{
+    class GlobalStateTable
+    {
+        private ConcurrentDictionary<Process, IdDictionary> DictByProcess;
+
+        public GlobalStateTable()
+        {
+            DictByProcess = new ConcurrentDictionary<Process, IdDictionary>();
+        }
+
+        public int Add(Process Process, object Obj)
+        {
+            IdDictionary Dict = DictByProcess.GetOrAdd(Process, (Key) => new IdDictionary());
+
+            return Dict.Add(Obj);
+        }
+
+        public object GetData(Process Process, int Id)
+        {
+            if (DictByProcess.TryGetValue(Process, out IdDictionary Dict))
+            {
+                return Dict.GetData(Id);
+            }
+
+            return null;
+        }
+
+        public T GetData<T>(Process Process, int Id)
+        {
+            if (DictByProcess.TryGetValue(Process, out IdDictionary Dict))
+            {
+                return Dict.GetData<T>(Id);
+            }
+
+            return default(T);
+        }
+
+        public object Delete(Process Process, int Id)
+        {
+            if (DictByProcess.TryGetValue(Process, out IdDictionary Dict))
+            {
+                return Dict.Delete(Id);
+            }
+
+            return null;
+        }
+
+        public ICollection<object> DeleteProcess(Process Process)
+        {
+            if (DictByProcess.TryRemove(Process, out IdDictionary Dict))
+            {
+                return Dict.Clear();
+            }
+
+            return null;
+        }
+    }
+}