Add missing typedefs to std::vector + typedef corrections

Tests for std::vector of pointers added which check
 std::vector<T*>::const_reference and std::vector<T*>::reference
usage which gave compilation errors in Python and Perl which had
specialized these vectors incorrectly.

Examples/test-suite/li_std_vector_ptr.i

@@ -15,6 +15,19 @@ using namespace std;
 int* makeIntPtr(int v) {
   return new int(v);
 }
+std::vector<int *>::value_type makeIntPtr2(int v) {
+  return new int(v);
+}
+int getIntValue(int *p) {
+  return *p;
+}
+int getIntValue2(std::vector<int *>::const_reference p) {
+  return *p;
+}
+int getIntValue3(std::vector<int *>::reference p) {
+  return *p;
+}
+
 double* makeDoublePtr(double v) {
   return new double(v);
 }