New feature plus security fixes

Since so many people have given me suggestions and one in perticular was so helpful for security so i implemented his hmac the esp32 has a secret device key and the server has a same key before every requist the esp32 mixes the current unix timestamp with its device key using sha 256 produces a signuture and it sends 3 headers x auth key (device id ) x auth time and etc. thanks to the redit user so much iv learned a lot of security thanks to you. docs.google.com/forms/d/e/1FAIpQLScFSyt...S4owrsaf01PZLXXTO_RfBCJZamHHQ/viewform for the new feature its a share lock an admin of the can deploy privileges to other users who are on the same network same hous on the smartlock.