refactor weighted-maxsat into separate files

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

src/opt/maxsls.h

@@ -0,0 +1,36 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    maxsls.h
+
+Abstract:
+
+    Weighted SLS MAXSAT module
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2014-4-17
+
+Notes:
+
+    Partial, one-round SLS optimizer. Finds the first 
+    local maximum given a resource bound and returns.
+
+--*/
+#ifndef _OPT_SLS_MAX_SAT_H_
+#define _OPT_SLS_MAX_SAT_H_
+
+#include "maxsmt.h"
+
+namespace opt {
+
+
+    maxsmt_solver_base* mk_sls(ast_manager& m, opt_solver* s, params_ref& p,
+                               vector<rational> const& ws, expr_ref_vector const& soft);
+
+    
+};
+
+#endif