Add more services and some fixes, along with more "override"

in the service's headers

src/core/hle/service/csnd_snd.h

@@ -0,0 +1,27 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// Namespace CSND_SND
+
+namespace CSND_SND {
+
+class Interface : public Service::Interface {
+public:
+    Interface();
+    ~Interface();
+    /**
+     * Gets the string port name used by CTROS for the service
+     * @return Port name of service
+     */
+    std::string GetPortName() const override {
+        return "csnd:SND";
+    }
+};
+
+} // namespace