Allow more than one process, free resources on process dispose, implement SvcExitThread

Ryujinx.Core/OsHle/ServiceCtx.cs

@@ -8,6 +8,7 @@ namespace Ryujinx.Core.OsHle
     class ServiceCtx
     {
         public Switch       Ns           { get; private set; }
+        public Process      Process      { get; private set; }
         public AMemory      Memory       { get; private set; }
         public HSession     Session      { get; private set; }
         public IpcMessage   Request      { get; private set; }
@@ -17,6 +18,7 @@ namespace Ryujinx.Core.OsHle
 
         public ServiceCtx(
             Switch       Ns,
+            Process      Process,
             AMemory      Memory,
             HSession     Session,
             IpcMessage   Request,
@@ -25,6 +27,7 @@ namespace Ryujinx.Core.OsHle
             BinaryWriter ResponseData)
         {
             this.Ns           = Ns;
+            this.Process      = Process;
             this.Memory       = Memory;
             this.Session      = Session;
             this.Request      = Request;