got rid of 'src' folders in each sub-project

src/core/core.h

@@ -0,0 +1,40 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "arm/arm_interface.h"
+#include "arm/interpreter/armdefs.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace Core {
+
+extern ARM_Interface*   g_app_core;     ///< ARM11 application core
+extern ARM_Interface*   g_sys_core;     ///< ARM11 system (OS) core
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/// Start the core
+void Start();
+
+/// Run the core CPU loop
+void RunLoop();
+
+/// Step the CPU one instruction
+void SingleStep();
+
+/// Halt the core
+void Halt(const char *msg);
+
+/// Kill the core
+void Stop();
+
+/// Initialize the core
+int Init();
+
+/// Shutdown the core
+void Shutdown();
+
+} // namespace