re-organize muz_qe into separate units

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/muz/transforms/dl_transforms.h

@@ -0,0 +1,30 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    dl_transforms.h
+
+Abstract:
+
+    Default transformations.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2013-08-28.
+
+Revision History:
+
+    Extracted from dl_context
+
+--*/
+#ifndef _DL_TRANSFORMS_H_
+#define _DL_TRANSFORMS_H_
+
+#include "dl_context.h"
+
+namespace datalog {
+    void apply_default_transformation(context& ctx);
+}
+
+#endif