audio_core: add teakra and lle interface

src/audio_core/lle/lle.cpp

@@ -0,0 +1,17 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "audio_core/lle/lle.h"
+#include "teakra/teakra.h"
+
+namespace AudioCore {
+
+struct DspLle::Impl final {
+    Teakra::Teakra teakra;
+};
+
+DspLle::DspLle() : impl(std::make_unique<Impl>()) {}
+DspLle::~DspLle() = default;
+
+} // namespace AudioCore