ESP32-S3-BOX firmware with different wakeword models

The current ESP32-BOX firmware version 0.2.1 uses the Hi ESP wakeword that has a poor response. See this issue.

The firmwares in this respository have been built using the ESP-BOX factory demo but modified as follows:

• ESP-BOX_firmware_Alexa.bin configured with the Alexa wakeword model that has a much better response.
• ESP-BOX_firmware_fixed_HiESP.bin incorporating the updated hiesp8 wakeword model in an unreleased fix for the esp-sr component. Has a significantly improved response to the Hi ESP wakeword.
• ESP-BOX_firmware_hacked_ESP.bin is a crudely modified version of the factory demo to use the multinet model to provide a wakeword - in this case E S P