Fix missing CharVector for JavaScript bindings

modules/js/src/core_bindings.cpp

@@ -419,6 +419,7 @@ namespace binding_utils
 EMSCRIPTEN_BINDINGS(binding_utils)
 {
     register_vector<int>("IntVector");
+    register_vector<char>("CharVector");
     register_vector<float>("FloatVector");
     register_vector<double>("DoubleVector");
     register_vector<cv::Point>("PointVector");