Auto 3033 fix incorrect nn path

[MRo47]

In

void parseConfigFile(const std::string& path, std::shared_ptr<T> nn, std::shared_ptr<dai::node::ImageManip> imageManip) {
        using json = nlohmann::json;
        std::ifstream f(path);
        json data = json::parse(f);
        if(data.contains("model") && data.contains("nn_config")) {
            auto modelPath = getModelPath(data);
            declareAndLogParam("i_model_path", modelPath);
            if(!getParam<bool>("i_disable_resize")) {
                setImageManip(modelPath, imageManip);
            }
            ...

• At line declareAndLogParam("i_model_path", modelPath); above (in original_file)
• The ros parameter is overridden with the path from nn_config file, line 3 below. This sometime might not be a path at all.

// nn_config.json
{
  "model": {
    "model_name": "forklift_openvino_yolov8n_2022",
    "zoo": "path"
  },
  ...

• Since paths in the nn_config file cannot be hard coded but rather rely on the location of the shared install directory, it should be of lower precedence than a ros param (i_model_path) if its set.

TLDR

• model path in nn_config file overrides ros param
• this solves the issue by giving a higher priority to ros param, i.e: if its set it will override the path in nn_config file

[MRo47]

got merged by vendor