Fixing wstring ROS2 data type, and import rename for latest release build compatibility (#86)

Co-authored-by: Davide Faconti <davide.faconti@gmail.com>

Author: bcohen116

src/ros_parsers/ros2_parser.cpp

@@ -78,6 +78,7 @@ std::string CreateSchema(const std::string& base_type)
         case ROS_TYPE_UINT64: schema += "uint64"; break;
         case ROS_TYPE_INT64: schema += "int64"; break;
         case ROS_TYPE_STRING: schema += "string"; break;
+        case ROS_TYPE_WSTRING: schema += "string"; break;
         case ROS_TYPE_MESSAGE: {
             auto type_info = reinterpret_cast<const MessageMembers*>(member.members_->data);
             std::string package = type_info->message_namespace_;