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

src/common/atomic.h

@@ -0,0 +1,19 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#ifndef _ATOMIC_H_
+#define _ATOMIC_H_
+
+#ifdef _WIN32
+
+#include "atomic_win32.h"
+
+#else
+
+// GCC-compatible compiler assumed!
+#include "atomic_gcc.h"
+
+#endif
+
+#endif