Add std::array container wrappers for Python

These work much like any of the other STL containers except Python slicing
is somewhat limited because the array is a fixed size. Only slices of
the full size are supported.

Examples/test-suite/cpp11_li_std_array.i

@@ -0,0 +1,53 @@
+%module cpp11_li_std_array
+
+#if defined(SWIGPYTHON)
+
+%include <std_array.i>
+
+%template(ArrayInt6) std::array<int, 6>;
+
+%inline %{
+std::array<int, 6> arrayOutVal() {
+  return { -2, -1, 0, 0, 1, 2 };
+}
+
+std::array<int, 6> & arrayOutRef() {
+  static std::array<int, 6> a = { -2, -1, 0, 0, 1, 2 };
+  return a;
+}
+
+std::array<int, 6> * arrayOutPtr() {
+  static std::array<int, 6> a = { -2, -1, 0, 0, 1, 2 };
+  return &a;
+}
+
+std::array<int, 6> arrayInVal(std::array<int, 6> myarray) {
+  std::array<int, 6> a = myarray;
+  for (auto& val : a) {
+    val *= 10;
+  }
+  return a;
+}
+
+const std::array<int, 6> & arrayInConstRef(const std::array<int, 6> & myarray) {
+  static std::array<int, 6> a = myarray;
+  for (auto& val : a) {
+    val *= 10;
+  }
+  return a;
+}
+
+void arrayInRef(std::array<int, 6> & myarray) {
+  for (auto& val : myarray) {
+    val *= 10;
+  }
+}
+
+void arrayInPtr(std::array<int, 6> * myarray) {
+  for (auto& val : *myarray) {
+    val *= 10;
+  }
+}
+%}
+
+#endif