revamp and simplify swig support, force typed enums for C# and Java for all except the constraint_solver/routing module; port examples; Fix SAT on very large problems

ortools/algorithms/csharp/knapsack_solver.i

@@ -13,8 +13,9 @@
 
 // TODO(user): Refactor this file to adhere to the SWIG style guide.
 
-%include <stdint.i>
-%include <std_vector.i>
+%include "enums.swg"
+%include "stdint.i"
+%include "std_vector.i"
 
 %include "ortools/base/base.i"
 

ortools/algorithms/java/knapsack_solver.i

@@ -18,8 +18,8 @@
 //
 // TODO(user): test all lines marked "untested".
 
-%include <enums.swg>
-%include <stdint.i>
+%include "enums.swg"
+%include "stdint.i"
 
 %include "ortools/base/base.i"
 %import "ortools/util/java/vector.i"

ortools/algorithms/python/knapsack_solver.i

@@ -17,7 +17,7 @@
 // - examples/python/knapsack.py
 // - ./pywrapknapsack_solver_test.py
 
-%include <stdint.i>
+%include "stdint.i"
 
 %include "ortools/base/base.i"
 %import "ortools/util/python/vector.i"