Changes in 0.9.7 beta

• Added support for the ATC advertisement formats for LYWSD03MMC sensors from both the firmware by ATC1441, available here, and the improved firmware by pvvx available here. Both custom firmware's broadcast temperature, humidity, battery voltage and battery level in percent. For the pvvx firmware, it is advised to change the setting advertisement type from all to custom. Sending multiple advertisment types at the same time might cause the voltage sensor from not showing up, depending on which advertisement comes first. The advertisement type custom will also result in a higher accuracy. Reloading the integration is needed to receive the voltage sensor after switching the firmware)