esp_log_set_default_level() function

Set the default log level. This function sets the default log level used by the ESP-IDF log library. The default log level is used by the definition of ESP_LOGx macros and can be overridden for specific tags using `esp_log_level_set("*", level)`. This is for internal use only. If CONFIG_LOG_DYNAMIC_LEVEL_CONTROL is not set, this function does not change the default log level.