Function global_from_json

subprojects/llama.cpp/common/jinja/value.cpp:1208–1217

template<>
void global_from_json(context & ctx, const nlohmann::ordered_json & json_obj, bool mark_input) {
    // printf("global_from_json: %s\n" , json_obj.dump(2).c_str());
    if (json_obj.is_null() || !json_obj.is_object()) {
        throw std::runtime_error("global_from_json: input JSON value must be an object");
    }
    for (auto it = json_obj.begin(); it != json_obj.end(); ++it) {
        JJ_DEBUG("global_from_json: setting key '%s'", it.key().c_str());
        ctx.set_val(it.key(), from_json(it.value(), mark_input));
    }
}

// recursively convert value to JSON string
// TODO: avoid circular references