code-generation: moved namespace to top of botan file
#include <kdbplugin.h>
#include <memory>
+using namespace ckdb;
using namespace Botan;
using std::unique_ptr;
@@ -31,8 +32,6 @@ extern "C" {
#include <kdbassert.h>
#include <kdberrors.h>
#include <string.h>
-using namespace ckdb;
-
/**
* @brief derive the cryptographic key and IV for a given (Elektra) Key k
