HCPBridge MQTT - Deprecated

Deprecated. Check https://github.com/Gifford47/HCPBridgeMqtt for an updated version.

Personal notes:

• in hoermann.h:

#define PIN_TXD 1 // UART 2 TXT - G17
#define PIN_RXD 3 // UART 2 RXD - G16
#define SLAVE_ID 1   <--not tested if '2' also works

• in configuration.h, comment:

#define USE_BME