Refactor BLE gateways (#617)

* 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

docs/use/ble.md

@@ -39,6 +39,9 @@ Note that the gateway return one or two measurement value each time. The differe
 * Temperature
 * Moisture
 * Fertilization
+* Humidity
+* Pressure
+* Steps
 * Weight
 * Impedance
 * Battery (mi jia only)
@@ -49,6 +52,11 @@ The infos will appear like this on your MQTT broker:
 
 More info are available on [my blog](https://1technophile.blogspot.fr/2017/11/mi-flora-integration-to-openmqttgateway.html)  (especially about how it was implemented with HM10)
 
+::: tip
+The HM10 module doesn't read enough information (servicedata UUID is missing) to support Mi Scale and Mi Band. They are supported nevertheless with ESP32.
+OpenMQTTGateway publish the servicedata field of your BLE devices, with HM10 this field can be longer compared to ESP32 if the device is not recognised.
+:::
+
 ## Setting a white or black list
 A black list is a list of mac adresses that will never be published by OMG
 to set black list