* MQTT discovery improvements
-remove gatewayBT
-remove device class formaldehyde (not existing in HASS)
-add SYStoMQTT new parameters
-attach connectivity parameter to the device
-add BT gateway infos and switches
-refactor modules storage and publication
* Add LYWSD03MMC and MHO-C401 device
and an associated BLE connect mechanism as these devices advertise only encrypted data
-free manufacturer data
-update library
* Implement scans number before connect
-Add the possibility to do a connect every X scan
-Rename variables for consistency
-Some refactoring for improved code reading
* [breaking] Refactor the BLE devices identification
generalize the use of the mac address with : for the lists, white, black and internal identification
Move structures from config_BT.h to ZgatewayBT.ino
update doc
* Move minRssi to INO and optimizations
change Minrssi name to match other variable convention
Optimize the add of : to mac address
Reduce the use of abs()
Note: I cannot move BLEinterval to the ZgatewayBT.ino due to its use on main.ino
* added support for secure TLS connections
on ESP32 and ESP8266 close#101
* added TLS test builds
* added documentation for TLS
fixed some some issues in the documentation
* added documentation for error code=54
* Refactor BLE gateways:
-merge HM10 and ESP32 code
-publish sensor values with the other BLE device parameters to avoid MQTT multiple publication
-make uniform the case of mac adress id between HM10 and ESP32
-add the possibility to remove service data publishing either when sensors is recognised or not
-correct manufacturing data display
-merge process cleargrass methods
-check service data validity before processing
Rename set commands to config
correct json buffer size and gateway name
replace state to cmd
replace set by config
add restart and erase command
add unicity to gateway command switches
BLE devices shouldn't be child of the gateway
make the BTtoMQTT topic consistent with other definitions
Florian