add sweet.i and some minor 'using' declarations

new/sch_lib_table.cpp

@@ -33,6 +33,7 @@
 
 //using namespace std;    // screws up Doxygen
 using namespace SCH;
+using namespace LT;         // tokens, enum T for LIB_TABLE
 
 
 LIB_TABLE::LIB_TABLE( LIB_TABLE* aFallBackTable ) :

new/sch_part.cpp

@@ -29,6 +29,7 @@
 #include <sch_lib_table.h>
 
 using namespace SCH;
+using namespace PR;         // tokens, enum T for SWEET_LEXER
 
 
 #define MAX_INHERITANCE_NESTING     6      // no problem going larger

new/sweet.i

@@ -0,0 +1,32 @@
+/**
+ * Interface Sweet
+ * is a Python interface file for SWIG.  Languages other than Python can
+ * possibly also be supported with little addtional work.
+ */
+%module sweet
+
+%{
+
+#include <dsnlexer.h>
+#include <sch_lib_table_lexer.h>
+#include <sch_lib_table.h>
+#include <sch_lpid.h>
+#include <sweet_lexer.h>
+#include <sch_part.h>
+
+%}
+
+%include "std_string.i"
+%include "std_deque.i"
+%include "utf8.h"
+
+%ignore LINE_READER::operator char* () const;
+
+%include "richio.h"
+%include "dsnlexer.h"
+//%include "sch_lib_table_lexer.h"
+%include "sch_lpid.h"
+%include "sch_lib.h"
+%include "sch_lib_table.h"
+%include "sweet_lexer.h"
+%include "sch_part.h"